海鸥牌4型系列照相机的使用
海底摄影相机使用指南说明书
Please ReadWe suggest that you read this instruction booklet thoroughly before use to have a full understanding of where each camera control is located,and what function each control provides.If you are new to underwater photography, be sure to read the General and Photo Tips sections.We also suggest that you read your camera manual thoroughly to have a full understanding of each camera function.I nitial Camera Setup 1.Insert a fully charged battery.2.Insert and format a memory card.3.Set camera date and time.4.Set camera to “Auto mode”.5.Set Flash Mode to “Flash Always Fires” (lightning bolt in LCD).6.Set White Balance to “Auto”.7.Set Image Mode to “12m”.8.Set Metering to “Center-weighted ”.9.Set AF-assist beam to “Off”.10Set ISO sensitivity to “160”.11.Set AF area mode to “Center”.12.Set Autofocus mode to “Single AF”.13. Set Macro mode to “ON” (flower icon).213546789Housing Lens PortTreat the glass in the lens port as a camera lens. After use, rinse and gently dry the lens port to avoid water spotting. To clean, use a mild soap solution or lens cleaner.Do not use alcohol or window cleaner on the Lens Port.2Housing Size and Weight:7" wide x 5" high x 5.4" deep including controls and lens port.18cm x 13cm x 14cm.2.8lb (1.3kg) above water.Slightly negative buoyancy in fresh water.Housing Controls1.Movie Record Button2.Playback Button3.Rotary multi-selector (up)4.Rotary multi-selector (left)5.Ok (apply selection) Button6.Rotary multi-selector (right)7.Rotary multi-selector (down)8.Menu Button9.Delete ButtonHousing Controls - Front ViewHousing Controls - Back ViewIkelite Digital Housingi n s t r u c t i o n m a n u a l#6184.81 for Nikon S8100Congratulations on your purchase of an Ikelite Compact Digital Housing.Ikelite has decades of experience in the underwater photographic, video,and lighting market.Our products are designed and built in the USA by Ikelite for both the professional and amateur.The clear housing permits instant visual inspection of the video camera and all sealing surfaces as well as complete monitoring of controls and camera LCD screens.This housing has been water pressure tested to 200’ (60m) at the factory. All camera controls are fully functional through the housing.Included in Box:1. Instruction Manual2.Ikelite Digital Housing3.Housing Lanyard (attached)4.Extra Control Tips5.Ikelite Lube #0184.16.Diffuser and Deflector7.Warranty CardChecking ControlsOnce the housing has been closed, make sure the housing controls line up with the corresponding camera controls. If the housing controls are misaligned slightly, make sure the camera hold down bolt has been tightened down firmly so the camera is flat against the tray.Turn Camera OnTurn the camera on and operate each of the housing controls to get a feel for using the camera in the housing. Take a few pictures above water with the camera in the housing.Zoom Control(NOTE:) After you have used the housing's zoom control, it must be returned to the center position to disengage. If the housing zoom control is pushing the zoom lever in either direction, you may not be able to take a picture or access any other function because the camera is receiving a signal from the engaged zoom control.Closing the Housing1.2.the housing back and that it is clean and in its proper location.3.Guide the back into the housing front.The o-ring should touch the housing all the way around. There should be an even gap all the way around between the housing and the housing back.4.Lift the lid snaps so they are extendedand place each lid snap into the corresponding hook on the housing back. 5.To close the housing, push down onthe lid snaps until they snap intoplace. Lid snaps on opposite sides of the housing should be closed at the same time. Be sure they are down far enough to engage the lock. Double check - Once the housing isclosed, check the o-ring seal. Checkthe gap between the housing back and the housing. It should be even all the way around the housing.Look through the clear plastic back at the o-ring. You should see a darkened area where the o-ring is compressed against the housing back. If you do not see an even black compression seal all the way around the back, open the lid snaps, reseat the housing back and close the lid snaps. Visually check the seal again.CAUTION:Some camera tripod socket threads are plastic. The mounting bolt is metal. Do not cross thread or over tighten as you may damage the camera tripod socket threads.Installing the Camera1.Pull out on each housing control until it stops. This will get the controlsout of the way for installation of the camera.2.Remove the back from the housing.3.The mounting tray for the camera is secured to the housing back.Position the camera on the tray.ing a coin or screwdriver (preferred), secure the camera with the traymounting bolt which threads into the camera’s tripod socket: Diagram A .Opening the HousingLid Snaps have a Lock .To open housing, push Lid Snap Lock forward and lift as shown.Keep pressure on the Lid Snap so it does not fly open quickly.Some lid snaps have a lot of spring tension once they go overcenter, so keep a firm grip on the lid snap.Lid Snaps may be opened one at a time.Diagram A56EngagedCenter Position DisengagedUsing the Camera’s Built-in FlashFor the best results, we recommend using an external Ikelite Substrobe. If you do not have an external flash, the camera’s built-in flash can be used with a diffuser installed. This use is limited due to the housing port blocking a portion of the built-in camera flash. Install the Diffuser and zoom in slightly to eliminate any dark areas noted in your photographs. See Diffuser/Deflector Installation below.NOTE: The camera’s built-in flash CANNOT be used with optional Wide-Angle or Accessory lenses.Diffuser UseThe diffuser should be installed when using the camera flash. When shooting close-up photographs with the camera flash and at the camera lens’s widest angle setting, the lens port on the housing can block a portion of the light from the camera flash. This can result in a shadow in a lower corner of the frame. Zoom the lens to eliminate the shadow (You can test this above water).Deflector UseThe deflector should be installed when using an Ikelite external strobe.The deflector will block and redirect the camera’s flash to the AF35 slave unit or EV-controller which controls the external strobe’s output.Remove the diffuser before attempting to install the deflector.A diffuser and deflector are included with the housing. TheThe deflector is also white but is not transparent.To install the diffuser or deflector,push the “Cut-out” Section into the port groove until it stops.Note the Small Hole. To avoidlosing the diffuser or deflector, you this hole.Diffuser and Deflector InstallationOptional AccessoriesBack o-ring #0109O-rings last for several years if properly maintained. (See maintenancesection). Always carry a spare o-ring in case the original becomesdamaged or lost.Replacement Lanyard #0321.10Tray with Dual Release Handles #9523.32Dual Tray and Release Handles are required to mount two externalDS-series Substrobes.WD-4 Wide-Angle Conversion Dome #6430.4The removeable WD-4 corrects light refractionunderwater, restoring the camera’s original angleof coverage. Approximately 3/4 of the camera'szoom range can be used with the dome in place.Slight vignetting may occur at camera’s widestangle setting.External Macro Adaptor #9306.82Allows attachment of 67mm threaded macrolenses from Inon and Epoque. NOT for use with67mm threaded wide-angle lenses.SubstrobeDS51Actual Size:8 cm dia x 12 cm3.2" dia x4.7"AF35 Strobe Package #4035The AutoFlash AF35 kit is a great compliment,to your new Ikelite point-and-shoot camerasystem. Everything you need to get started isin the box. Just attach it to the bottom of yourhousing and start taking pictures!AF35 AutoFlash kit includes:AF35 strobe - Flex arm - AutoFlash sensorHandle with rubber grip - Tray (single or dual)Mounting hardware.Substrobe DS51The Substrobe DS51 covers the equivalent of a 28mm lens. It is the idealchoice when using only the camera lens with no accessory wide anglelenses attached.Using Strobes (continued)DS161(continued)equivalent of an 18mm lensor 100 degrees w/diffuserinstalled. It is the idealchoice when using widedegrees. It also features a225 flashes per full charge.its 1" diameter ball is idealstem mount allows easysystem allows easy strobebutton.DS161 Movie SubstrobeThe DS161 Movie Substrobe combines all of the functionality of ourrenowned DS160 with a powerful 500 lumen LED video light. Threesuper-bright LEDs are arranged behind a special optical element to provide45 degrees angle of coverage free of hotspots.Using Ikelite Strobes910NOTE: Other Accessory and Wide-Angle Conversion lenses cannot be usedwith this housing. For additional information regarding recommendedstrobe packages and optional accessories, go to . Recommended Strobe PackagesSubstrobe AF35 AutoFlash Kit #4035 includes Single Tray.Substrobe AF35 AutoFlash Kit #4035.1 includes Dual Tray.Substrobe DS-51 Package #3944.54 includes #4086.61 ArmSystem with EV Manual Controller.Substrobe DS-160 Package #3944.91 includes #4086.61 ArmSystem and 1.5 hour Smart Charger with EV Manual Controller.Substrobe DS-161 Package #3945.03 includes #4086.61 ArmSystem and 1.5 hour Smart Charger with EV Manual Controller.Please Read If Using an EV Manual ControllerThe EV-Controller used with Ikelite DSSubstrobes has two user settings. Onesetting is for strobe selection, the otheris for pre-flash “P” or non pre-flash ”P”.This camera uses pre-flash, (except inmanual mode), thus the EV-Controllershould be set to the pre-flash “P”position when used with this camera asa slave. If manual mode is desired, setthe EV-controller to the non-pre-flash “P”position.Ikelite Lube #5020 (4 - 1cc tubes)For light lubrication of the mainhousing o-ring.Ikelite Lube - 1cc TubeControl MaintenanceIkelite controls are designed to provide years of reliable service with minimal maintenance.1.Push button controls require no maintenance other than rinsing in freshwater after saltwater use. If a push button control becomes difficult to push or if it sticks when depressed, soak the housing in luke warm fresh water. After a few minutes, operate the push button. If this does not correct the problem, return the housing to Ikelite for maintenance.2.Some of the controls have long shafts. These controls can be pulled out,exposing the shaft see Diagram B - Page 15and Diagram C - Page 16. To lubricate the control, gently pull on the knob until the stainless steel shaft is exposed. Lightly lubricate the shaft, then move the shaft in and out several times. This will lubricate the x-ring in the Ikelite control gland.This should be done before using the housing after a prolonged storage period, or once a week when the housing is in constant use.Lubricants1.Ikelite provides silicone lubricant with the housing. We recommend you useonly Ikelite lubricant (included with housing - Page 12) on Ikelite products as some other brands may cause the o-ring to swell and not seal e only enough lubricant to lightly cover control shafts and o-rings.Wipe off any excess lubricant with a clean cloth. Lubricant is not asealant, it is used to reduce friction. Excessive lubricant can collect sand and dirt which may interfere with proper sealing.CAUTION:Never use spray lubricants as the propellant ingredient can cause the plastic housing to crack.1314Diagram CHousing MaintenanceThe Ikelite Digital Housing should be given the same care and attention as your other photographic equipment. In addition to normal maintenance, we recommend that the housing be returned to Ikelite periodically to be checked and pressure tested.1.Do Not leave the camera and housing in direct sunlight for prolongedperiods. Heat may damage the camera.2.Do Not ship the camera in the housing.3.Before using the housing, always check the tightness of the set screwin each control knob.Check each control gland penetrating the housing to make sure they are tight. There is a slight chance that either could vibrate loose during travel.4.Keep the back o-ring clean and lightly lubricated. To lubricate, removethe o-ring from the back. Put a small amount of lkelite lubricant on your fingers. Pull the o-ring through your fingers to apply a light coating of lubricant. Only apply enough lubricant to make the o-ring feel slick. Do Not stretch the o-ring . This light coating of lubricant will help to keep the o-ring from drying out and will help to show a dark sealing line when the housing back is properly sealed.5.Keep the area where the o-ring fits and the sealing surface of thehousing clean.6.Rinse the housing exterior thoroughly in freshwater after each saltwateruse. Dry with a soft cloth. Dry lens port to eliminate water spotting.After several uses in saltwater, soak the housing exterior in a mild soap solution, rinse and dry before storing. When storing the housing, remove the back o-ring, lightly lubricate, and place in a plastic bag. Place the plastic bag with o-ring inside the housing for safe keeping.7. If removing a housing push button, Do Not re-use the E-clip. ContactIkelite for replacement E-clips (part #0319.12).8.Leave lid snaps in the open position when not using the housing forextended periods.Control Maintenance Cont.3.Some of the controls have a short shaft and cannot be pulled outexposing the shaft for lubrication. In the unlikely event one of these controls sticks or becomes difficult to operate, you can remove thecontrol from the housing and lubricate it, or return the housing to Ikelite for maintenance. To remove the control - Diagram B , loosen the set screw in the knob (allen wrench required); remove the knob. If there is salt or dirt build-up on the exposed control shaft, clean the shaft. Open the housing and gently slide the control shaft out of the control gland.Clean and lightly lubricate the shaft, including the end of the shaft.Slide the shaft back into the control gland and gently slide it back and forth a few times without fully removing the shaft from the gland.Replace the knob noting the flat area on the shaft. The set screw in the knob should tighten down against the flat area on the control, so the knob does not turn on the shaft.before reinserting into glandDiagram BGeneral Tips1. Before placing your camera in the housing, it is a good idea to immersethe closed housing in a bucket or rinse tank to make sure it is watertight.2.Due to the power required to operate the camera and LCD screen, it is agood idea to start each dive with a fully charged camera battery.3.As soon as you enter the water, take a moment and check the housingto see that it is properly sealed.4.Next, check to see if there are any bubbles on the face of the lens port.If there are, take your finger and remove them. If there are bubbles on the lens port they can produce soft focus spots in your video.NOTE:Fogging of the port glass may occur due to a variety ofenvironmental factors. To prevent fogging issues, always assemble the housing in a cool, dry area, such as an air conditioned room, and keep the housing out of direct sunlight. If fogging persists, insert a fresh desiccant packet inside the housing before each day of diving.Desiccant packages are not available from Ikelite, however most camera stores carry them.1817Returning Products for Service (outside the United States)For the separate international customs documentation form that you complete to accompany the shipment, please state or designate that the enclosed products were originally manufactured in the USA and are being returned to the manufacturer for repair service. Value of the equipment listed for customs purposes should be zero.Ikelite Technical SupportE-mail:*******************Phone 317.923.4523Fax 317.924.7988Ikelite Underwater Systems50 West 33rd Street Indianapolis, IN 46208 USAReturning Products for ServiceIkelite is most interested in performing any service to ensure that all products perform as intended. Evidence of purchase date must be provided to obtain warranty service.No prior authorization is required. You may return directly to us or through your dealer. Please include a brief description of the problem, any relevant e-mail correspondence, and/or instructions on what you want us to do.Always include name, shipping address, e-mail address, and phone number inside of the package.You may also want to insure the package. Send Postage Pre-Paid to:Ikelite Underwater Systems ATTN: Repair Dept.50 West 33 StreetIndianapolis, IN 46208 USANo reimbursements for return freight will be issued.Ikelite Limited WarrantyAll Ikelite products are warranted against any manufacturing defects for a period of one year from the original date of purchase. Defective products should be returned prepaid to Ikelite. Ikelite will, at its discretion, repair or replace such products, and will return to customer prepaid. All other claims of any nature are not covered. Housing is pressure tested and warranted to 200’ (60m) maximum underwater depth. Except as mentioned above, no other warranty expressed or implied, applies to this Ikelite product .Photo Tips (continued)7.Many photographers transfer their images to the computer where theycan fine tune the appearance of the image. Many of the imagemanipulation programs make you think you can magically correct any image taken and make a good picture. Remember when using an image manipulation program such as Photoshop, that if the image isoverexposed, much of the color is missing. If the color is missing you cannot adjust it. If images are slightly underexposed, the color is there,but it is just dark and you can adjust it to some degree. So, if you error in exposure, it is better to have the image slightly underexposed rather than overexposed.Photo Tips1.The number one rule in underwater photography is to eliminate as muchwater between the camera and subject as possible. Get as close as you can to the subject, then use the zoom. If you are using flash for still photos, subjects beyond 6 feet (1.8m) will not have much color regardless of strobe power.2.The camera’s built-in flash is very close to the camera lens. The flashcan light up any suspended particles in the water and they can berecorded in your picture. This effect is called backscatter. To eliminate as much backscatter as possible, photograph close or use an externalstrobe. Photograph in clear water; do not stir up the sand or silty bottom.If backscatter becomes a problem in the environment you are photographing, an external flash will help eliminate much of the backscatter.3.Many digital cameras have a slight lag time between when you pressthe shutter release button and the camera actually takes the picture.Hold the camera steady a second or two after pressing the shutter release button.4.Do not shoot down on subjects as they will quite often blend into thebackground and be difficult to see in the photograph. Shoot subjects straight on or shoot up at a slight angle using the blue water as a contrasting background.5.Underwater flash is used to restore the warmer colors filtered out by thewater as well as to illuminate the subject. When photographingunderwater, set the camera to use flash on every shot. If the camera’s flash is set to AUTO and the sun is behind your subject, the camera may see enough light and not fire the flash. With the sun behind the subject,the subject is shaded (dark) and needs flash for a good exposure.6.When using daylight or flash, if your camera consistently over orunderexposes the image, you may want to adjust your camera’s exposure compensation settings.NOTE:To shoot photographs closer than 2 feet (0.6m), we recommendusing an external strobe such as the DS51 or DS160. An external strobe can be positioned so nothing blocks the light path between the strobe and the subject.6184.81_Nikon_S8100_01-0211。
Omega View 45E 大型摄影机说明书
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he Omega View 45E represents the best of two worlds: It is precision large format 4" x5" camera designed for years of professional use. It is a very impressive performer at a very affordable price. This combination along with a complete
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Omega View 45E
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海鸥胶片相机操作方法
海鸥胶片相机操作方法海鸥胶片相机是一款很受欢迎的经典相机，它具备了优秀的机械设计和出色的成像质量，非常适合摄影爱好者使用。
下面我将详细介绍海鸥胶片相机的操作方法。
1. 为海鸥胶片相机装上电池：打开相机底部的电池盖，按照正确的极性将2节碱性电池装入电池槽，并将电池盖盖好。
2. 调整相机快门速度：在相机顶部的快门盖上，将选择杆置于"X"位置。
然后将快门速度选择盘转动到所需的快门速度上，选择范围为"B、1、2、4、8、15、30、60、125、250、500、1000"等。
3. 调整光圈数值：将镜头上的光圈环旋转，可以调节光圈的大小。
光圈数值越小，光圈孔径越大，进光量越大；光圈数值越大，光圈孔径越小，进光量越小。
调整光圈大小可以控制照片的景深，影响焦点范围和背景虚化程度。
4. 设置对焦距离：根据拍摄距离选择镜头上的对焦刻度。
在镜头上可以看到对焦刻度表，其单位为米。
根据被摄物体的距离，选择对应的刻度，并通过旋转镜头对焦环将焦点调整到合适的位置。
5. 调整相机测光方式：在相机顶部的测光模式拨轮上选择所需的测光方式。
常见的测光方式有中央权重测光、点测光和多区测光。
不同的测光方式适用于不同的拍摄场景，根据实际情况选择合适的测光方式。
6. 调整相机装片方式：打开相机背部的胶片盖，将底片放入胶片槽中，并注意底片的定位。
将胶片装片进胶片槽后，将片背拉出一点，注意不要将片背外露。
轻轻关闭胶片盖，并进行装片操作，直到底片装片就位，然后拨动胶片摇把使胶片移至下一张。
7. 拍摄照片：通过对焦环、光圈环和快门按钮调整好拍摄参数后，将取景器对准被摄物体，通过按下相机正面的快门按钮进行拍摄。
拍摄完成后，根据需要继续调整参数并进行下一次拍摄。
8. 重绕胶卷：在拍摄完所有底片后，按下相机底部的重绕按钮，将胶片底片全部重绕回胶片盒中。
然后轻轻打开胶片盖，取出重绕好的底片。
9. 注意事项：使用胶片相机拍摄前，需要确保底片已经在相机中正确装片，并且相机具备足够的电量。
相机的操作规程
相机的操作规程相机是一种重要的影像捕捉工具，正确地操作相机不仅可以提升拍摄效果，还能延长相机的使用寿命。
下面将为您介绍相机的操作规程，包括设置、拍摄技巧以及保养，以帮助您更好地使用您的相机。
一、设置1. 电源：在使用相机之前，请确保电源已充足并插入相机，或者使用已充满电的电池。
检查电池是否安装正确，并确保相机处于关闭状态。
2. 日期和时间：根据需要，设置正确的日期和时间。
这将有助于您对照片进行分类和回忆。
3. 存储卡：将一个空的存储卡插入相机中，并确保存储容量足够满足您的需求。
4. 画质设置：根据拍摄需要，选择合适的画质设置。
一般来说，较高的画质设置会占用更多的存储空间，但也会获得更好的图像质量。
二、拍摄技巧1. 对焦：使用相机的自动对焦功能，将主体对准取景框中的对焦点（通常为框中的中心），按下快门按钮轻轻按下部分，等待对焦完成后再完全按下。
确保主体清晰锐利。
2. 曝光：在大部分情况下，相机的自动曝光模式能够提供适当的曝光。
观察取景框中的亮度指示器，确保图像既不过曝光也不欠曝光。
如有需要，可以手动调整曝光补偿以获得更好的拍摄效果。
3. 快门速度：根据拍摄主题的特点选择适当的快门速度。
较快的快门速度可以冻结运动，如拍摄运动中的体育比赛；较慢的快门速度则可以拍摄流动的水或夜景等效果。
4. 白平衡：根据环境光线的颜色温度选择适当的白平衡设置，以确保照片的色彩表现真实自然。
如在室内使用白炽灯拍摄，可选择白平衡设置为室内。
5. 姿势和构图：注意主体的位置和姿势，选择合适的构图方式来营造出最佳的画面效果。
尝试不同的角度和视角，以获得更有趣的照片。
三、保养1. 清洁镜头：定期清洁相机镜头以确保图像的清晰度。
使用专用的镜头清洁纸或清洁布轻轻擦拭镜头表面。
切勿使用粗糙的纸巾或衣物，以免刮伤镜头。
2. 防尘措施：保持相机与镜头干净，并避免将其放置在灰尘多的环境中。
在不使用相机时，使用相机盖或镜头盖保护相机和镜头。
3. 调校和维护：定期检查和调整相机的各项设置，如对焦、曝光等。
Canon EOS 5D Mark IV 相机用户手册说明书
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AKASObrave4 运动相机 使用说明书
使 用 说 明 书Brave 4 运动相机目录配件清单产品简介快速入门相机模式操作指南 个性化设置 App连接 回放 删除 导出相机维护电池维护配件使用联系我们1 2 4 5 6 6 8 9 10 10 11 11 12 14--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------配件清单AKASO Brave 4运动相机 × 1防水壳 × 1遥控器 × 1充电器 × 1转轴 × 8扎带 × 51050mAh 电池 × 2镜头布 × 1快速操作指南 × 1保修卡 × 1绑带 × 4头盔底座 × 2USB数据线 × 1自行车支架 × 1背夹 × 1防尘背盖 × 1EV0.02020/09/2809:03:1300:00:001080 60FPSWDR注意：当相机套上防水壳后不能录制声音。
RICOH 数码照相机CX4 说明书
本书包含以下两种使⽤说明书。
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海鸥双反相机操作方法
海鸥双反相机操作方法海鸥双反相机是一款经典的胶片相机，其操作方法相较于数码相机有所不同，需要更多的手动操作。
下面将详细介绍海鸥双反相机的操作方法，帮助大家更好地使用这款相机。
1. 装载胶卷海鸥双反相机使用120或135格式的胶卷。
在装载胶卷之前，需要在相机背部打开胶卷仓盖，将胶卷安装在相机胶卷轴上，并拉出适当长度的胶卷。
然后将胶卷轴盖盖好，关闭背部仓盖。
2. 设置快门速度海鸥双反相机的快门速度可以手动设置，通常有B门（快门打开，松开快门按钮后快门关闭）、1/500s、1/250s、1/125s、1/60s、1/30s、1/15s、1/8s等选项。
通过旋转快门拨轮，调整所需的快门速度。
3. 设置光圈海鸥双反相机的镜头通常有多个光圈数值可供选择。
通过旋转光圈环，调整所需的光圈数值。
光圈值越小，光圈越大，进光量越多，景深越浅；光圈值越大，光圈越小，进光量越少，景深越深。
4. 对焦海鸥双反相机的对焦是全手动操作，需要通过调整镜头焦距环来完成。
在取景器中通过对焦屏观察清晰度，调整直到取景器内的图像清晰为止。
5. 使用测光表海鸥双反相机大部分没有内置光圈表，因此需要使用外置的测光表来测量光线情况。
测光表可以是光学测光表或电子测光表，通过它来获取正确的光圈和快门速度参数。
测光表通常是根据ISO感光度、光线情况和所选景深来推荐快门速度和光圈数值。
6. 按下快门当设置好快门速度、光圈、对焦后，就可以按下快门按钮进行拍摄。
在B门模式下，按下快门按钮打开快门，松开快门按钮关闭快门，从而控制曝光时间。
7. 重复操作完成一次拍摄后，需要通过转动胶卷把手来卷送底片，将新的底片移动到拍摄位置，然后重复上述操作进行下一次拍摄。
8. 换片当一卷胶卷拍摄完毕后，需要打开相机背部仓盖，取出已经曝光的底片，进行冲洗或送去冲洗。
然后再装载新的胶卷，继续拍摄。
总结：海鸥双反相机是一款操作相对复杂的经典胶片相机，需要较多的手动操作来完成拍摄。
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海鸥牌4型系列（4、4B、4C型）照相机的使用使用照相机之前，应先了解照相机各部分的名称与作用。
一、胶卷的装卸
本机装胶卷的方法是：把后盖开关盘上的保险揿杆向下按，并顺序“开”字箭头方向旋松开关盖，后盖即开启。
拆开胶卷封口后装入照相机下部胶卷室，把胶片轴芯装入照相机上部胶卷室，把胶卷保护纸的一头插入胶片轴芯的长槽中，慢慢摇动卷片摇柄。
4型照相机则卷动卷片钮，使保护纸上箭头标记对准机身上的红标点，然后关上后盖，按照开关盘上“关”字方向旋紧至保险揿杆锁住为止。
锁紧后盖，锁勾应进入机身槽中，融后盖易弹开，使胶卷漏光报废。
装完胶卷后，按顺时针方向转动。
4型照相机的卷片钮到卷不动为止，4A 型照相机到摇不动卷片摇把为止，计娄窗内出现“1”字，表示胶卷已装好第一张。
4型照相机卷片机构与快门按钮连动，快门开启一次后，方能再次卷片；
4A型照相机卷片机构与快门上弦连动，每次卷片后，须将摇柄转到原位时，方能按动快门，否则按不下快门按钮。
拍完第十二张后，4A型照相机要继续摇动摇柄，4型照相机要继续转动旋钮，把胶卷的保护纸全部卷到胶卷轴上，方可打开后盖取出胶卷。
4B、4C型照相机使用135胶卷时，应关闭红窗上抽板，再推上红窗锁板，将红窗抽板锁住，防止漏光。
装入135画面框，按倒、顺两个方向轻轻拨动八牙轮，当看到计数窗内的计数盘跟着转动时，画面框即已装妥，可以使用。
此时，需使用两只通用暗盒，先拉出储片暗盒的片头，因定在承片暗盒轴芯上，在承片暗盒轴芯两头加上套管和连轴头，用装120胶卷方法，将承片暗盒装入照相机上部胶卷室，再将储片暗盒放在照相机下部胶卷室压簧上，同时使胶卷上的孔和八牙轮的齿相啮合，盖上压片板，锁紧后盖，即可拍摄。
二、取景与调焦
取景与调焦的方法是：拉开直接取景框，拍摄60*60毫米画幅时，整个磨砂玻璃上所能看到的景物即是照片可拍摄的取景范围。
4B、4C照相机拍摄
60*45毫米画幅时，了景范围应在磨砂玻璃上二条粗红线区域中；4C型照相机拍摄135胶卷时，取景范围应在磨砂玻璃上长方形的红线框内。
顽固不化观取景时，要使眼睛紧靠取景框后面的小方孔，直接看到的景物即是可拍摄的范围，但直观取景仅适用60*60毫米的画幅。
4B、4C型照相机拍摄60*45毫米画幅时，如拍摄的景物高而窄，则应先调好焦距，再将相机侧向进行拍摄。
旋转调焦钮，从磨砂玻璃上看到的被摄景物成象最清晰时，距离即已调好。
在调焦过程中，若用放大镜观看被摄物清晰度时，可向下拨动放大镜锁扣，放大镜便自动弹起；用完后，按住放大镜边框复到原位，放大镜即被锁住。
4型毓照相机的景深范围，可以直接从调焦钮的景深指示表上读出。
例如，距离为2米，光圈为8时，它的景深范围为1。
79~2。
29米，在这一范围内拍摄的景物都是清晰的。
拍摄目标固定时，光圈愈小，景深愈大；光圈愈大，景深愈小。
光圈不变时，物距越远，景深越大；物距越近，景深越小。
三、快门速度与光圈
快门及光圈的调节方法是：当快门调节钮中音质刻线对准速度刻度值的某一档时，即为该档的速度；当光圈调节钮上的刻线对准光圈刻度值的某一档时，即为该档的光圈数。
4型、4B、4C型照相机在调定快门速度后，应扳动快门上弦扳手，上紧快门后才可拍照。
四、多次曝光的使用
4型、4B、4C型照相机，在一张照片上要想获得多次曝光，须反复上紧快门，反复按动快门按钮。
4A型照相机拍摄多次曝光时，可在前一次曝光完毕后，按一下多次曝光揿钮，再将卷片摇柄倒片一周，回到原位，此时快门又重新上紧，可作第二次曝光。
按此方法反复进行，即可实现多次曝光。
五、自拍的应用
使用自拍机时，向左推动自拍机扳手到固定位置。
拍摄时，按动快门按钮，自拍即可自行运转达，延时8-10秒后，快门自动释放。
使用自拍机时，如遇自拍卡住时，不要动手往回扳，以免损坏照相机零件，可轻轻活动一下自拍扳把，或重新上紧快门，再次按动快门按钮。
如仍不运转，则应进行修理。
六、闪光的使用
使用闪光灯时，把闪光灯插头插入X闪光插座上，便可进行使用。
X闪光在中心快门照相机上的任何一档速度都可使用。
如果采用M闪光光时，仍用X闪光插座，但快门速度只能在1/30秒或者更长的曝光时间内使用。
--摘自《照相机使用和维修》刘兆玉编著。