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  • SEACAM housing for Canon 5DII - SEACAM USA
    of course controls specific to the video functionality of the 5DII including Live View There is also an external lever to release the lens inside the housing making it easier to change lenses without opening the back of the housing especially when zoom or focus gears are attached to the lens The Set button is important because it starts and stops video recording as well as allows image deletion through the housing and this is accessible with hands still on the right handle You can see the long silver lever on the inside of the housing that allows this Note the photos of the housing with either of the two magnified viewfinders either the Swivel 45 degree finder S45 or the Sport 180 S180 Divers using the housing primarily for the video capability will no doubt prefer the far less expensive Pro viewfinder shown here below as it will not obscure the camera s LCD screen and make it lighter in the water Those shooting surf applications or snorkeling for large marine life will undoubtedly want the Pro viewfinder option In this shipment we also received a really nice macro port this time for the Canon 100 macro but can

    Original URL path: http://www.seacamusa.com/housings/seacam-housing-canon-5dii/ (2016-02-17)
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  • First dive with SEACAM 5DII - SEACAM USA
    too far and stretching the spring beyond optimum In water Wrist fatigue is not an issue with this camera I shot 2 dives with 5DII housing most of the time hand holding a Seaflash 150 in left hand and 5DII housing with superdome and PVL 57 5 in right hand With 2 dives like that on my MKIII housing my right wrist would likely have been sore from upward torque of only one hand on housing mounted strobes and 2 hands on grips are not an issue but long periods of hand holding housing with MKIII with superdome and long port extension is tiring 5DII housing handles very nicely in water I was surprised what a modest decrease in size of housing could make to overall comfort Of course camera is much lighter than MKIII too So as a package it was very pleasant and easily manageable Native viewfinder discernibly smaller than MKIII but not an issue when using S180 viewfinder in either reading numbers or fine focus on groundglass As compared to the 5D where the zones of AF are black on 5DII they are red and therefore very easy to see and navigate Controls essentially similar to other Canon housings I ve used over the years aside from those relating to video Image Quality Quite excellent no surprise there as I expected that from having shot the camera topside already Quick Evaluation Already owning a 1DMKIII for the 10 frames per second and a 1DsMKIII for the high res 21MP full frame the 5DII leaves me conflicted about which to pack for a serious shoot Which says a lot about the 5DII and its ability to render very high quality files in a smaller package easier for travel and in water applications If I didn t sometimes need

    Original URL path: http://www.seacamusa.com/housings/first-dive-seacam-5dii/ (2016-02-17)
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  • Hot Shoe pin configuration for Canon 1D/1Ds MKII / 5D and Nikon D2X / D200 digital cameras - SEACAM USA
    be built into all shipped housings for 2006 and also can be retrofit by authorized SEACAM service centers These SEACAM hot shoe configuration sheets show how to adjust Nikon and Canon housings without this connector SEACAM is the only company which offer this very flexible hot shoe system Please note that directions on how to remove and reset pins without tools or cutting wires are included in the data sheets Please select a data sheet Canon MKII 5D Nikon D2X D200 SEACAM HOT SHOE CONFIGURATION CANON Operating a digital camera with an underwater flash needs to adjust your hot shoe to the demand which flash you use For preparing the hot shoe at your SEACAM housing you easily can remove the golden pins by bulling them out with your fingernails or a thin knife Replacing back you push them in again and place them in position with a pen or a thin insert key For using the fully CANON e ttl the SEACAM S6 socket is necessary to be installed black pins in position white pins removed e TTL SEAFLASH 250 digital CANON 580 EX both in e ttl mode all e ttl functions ready light symbol active S6 socket necessary MANUAL ONE NON TTL FLASH in manual mode ready light symbol not active MANUAL TWO NON TTL FLASH in manual mode ready light symbol not active If you want to keep the ready light symbol you also can cut all cables for the right socket except red trigger and brown ground on the connection board at the top of your housing Top SEACAM HOT SHOE CONFIGURATION NIKON Operating a digital camera with an underwater flash needs to adjust your hot shoe to the demand which flash you use For preparing the hot shoe at your SEACAM housing you easily

    Original URL path: http://www.seacamusa.com/housings/hot-shoe-pin-configuration-for-canon-1d1ds-mkii-5d-and-nikon-d2x-d200-digital-cameras/ (2016-02-17)
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  • Canon 16-35mm II Lens Test - SEACAM USA
    faster superdome and fisheye port and the following port combinations with each port no extension PVL20 25 30 35 40 45 50 55 and 60 Lenses tested 16 35mm II 17 40 15mm with Tamron 1 4 teleconverter As with topside test I provided an impossible test on the lens I set one of the exposure slates in the background center and that s where the lens focused I then put two more exposure slates at right and left upper corners about 2 1 2 feet closer to the lens than the point of focus and worked at only F 5 6 aperture priority Hard to imagine any lens being stellar in the corners under those conditions Why That can happen on the reef You have a central area of focus and reef rising on the periphery in the foreground Had I chosen to shoot across a flat plane the results would have been dramatically different The lens would have performed far better focusing along a flat plane But how often does that come up in normal UW imaging Right now I only cared about what port extension would give the best results for the way I would likely shoot on a reef OK here s the quick and dirty on what is a pretty interesting comparison First here is the 16 35 with no port extension and the superdome THIS IS WHY WE TEST It is horrible Note also that it is not as wide as the later tests with a properly matched port extension That was actually a surprise to me All distances were the same 16 35mm II best results with Seacam Superdome and PVL 60 Note that there is distortion in the corners That is to be expected but note also that there is no vignetting like you ll see on the 17 40 sample in the next post The 16 35 II has much better color and contrast as well The lens is very sharp in the center 17 40 best results with Seacam Superdome and PVL55 Note that this trumps my previous testing where I have recommended either a PVL 30 or PVL35 This camera and lens have recently been sent back to Canon for precise calibration for a back focusing problem It is now very sharp with all topside tests with all my lenses I deduce this is the more accurate test and the way I will shoot moving forward Your personal cameras may differ and you should do your own tests You won t see massive differences from these small thumbnail images In reality I did not see massive differences between the 100 enlarged view in the corners of the UW shots with the 17 40 and 16 35 II either even in PS on a 23 monitor working from the RAW images Here s how I see it 1 16 35 II is definitely sharper than 17 40 topside This is evident in the topside tests both center and corners The

    Original URL path: http://www.seacamusa.com/lenses-ports-domes/canon-16-35mm-ii-lens-test/ (2016-02-17)
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  • Lens Testing for Underwater Use - SEACAM USA
    port extension Note also that I have determined the 15mm is excellent with superdome but performs relatively poorly in corners with fisheye port On the other hand both 10 5mm and 16mm Nikon fisheyes work perfectly with both superdome and fisheye port Clearly even though both Canon 15mm and Nikon 10 5mm are 180 degrees there is a difference in the optical formula 14mm PVL25 and superdome but still not wonderful in corner Very difficult lens to get good performance underwater Further in water testing confirms ongoing issues with this lens underwater it is marginal with all tested ports and extensions I regret that I can not make the 14mm work adequately underwater as this is a beautiful angle of coverage which I would love to have available 16 35mm PVL30 and superdome Add 2 diopter according to subject 17 40mm Super Dome PVL30 Add 2 diopter according to subject 20mm WP PVL30 24mm Wide Port PVL30 35mm Wide Port PVL35 24 70mm Wide Port PVL90 2 diopter With this lens the diopter required to get decent close focus performance Without diopter lens drops out of focus nearer than about 3 5 feet Tests demonstrated a problem with my personal camera 15mm lens When same problem was evident with 15mm lens borrowed from CPS both underwater and topside I knew it to be a camera issue The lens would look sharp in the viewfinder when focused AF but point of focus would actually be about a foot behind the subject backfocus When using manual focus on the same target both lenses would be sharp So it was an issue with the AF mechanism on the camera and it was sent back to Canon along with both 15mm and 17 40mm lenses for calibration Images are now much sharper after return from Canon Professional Services I was concerned that tweaking camera at the wide angle end might be a problem for my 100 400 zoom but I found that it seems to be better now as well Clearly it was an issue with my camera body most evident with the 15mm lens Tests conclusively proved that adding a diopter helped enhance the center point focus and possibly even corner performance on the 16 35mm and 17 40mm zoom lenses when properly matched to correct port and port extension but did so at the expense of wide angle coverage The stronger the diopter the less wide the maximum angle of coverage For some subjects like schooling fish or reef scenics this may be an advantage For other subjects like shipwrecks or diver interaction this may be a disadvantage While some shooters have very strong opinions about the importance of diopters I have come to the conclusions that with the Seacam system and the two primary zooms used 12 24mm for Nikon and 17 40mm for Canon the addition of a diopter is determined not only by the port wide port will need a diopter superdome does not require a diopter but also

    Original URL path: http://www.seacamusa.com/lenses-ports-domes/lens-testing-underwater-use/ (2016-02-17)
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  • SEACAM Wet Two Diopter - SEACAM USA
    to slip in your BC pocket when not in use Extremely non intrusive to carry and super easy to install UW Purge holes displaces the water for easy installation Powerful Here are two examples of the Wet Two on a sedentary subject first at 1 1 rack on a Canon EOS1DsMKII camera and then with Wet Two Note that this is with a full frame camera Ultimate magnification will be greater with a cropped camera like the D2X 1 1 1 1 with Wet Two 1 1 1 1 with Wet Two You can get closer This one I did not predict and is reason enough to go with the Seacam wet diopter concept With skittish animals you can more easily fill the frame from a greater distance Here s a fire dartfish I tried to get as close to as I could with my 100mm macro This is not 1 1 because it would pop into its hole in the sand before I could ever get that close Here s the same fire dartfish from more or less the same working distance but this time with a Wet Two diopter added I don t mean this to be a

    Original URL path: http://www.seacamusa.com/lenses-ports-domes/seacam-wet-two-diopter/ (2016-02-17)
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  • Canon 17-40mm reflections in dome port - SEACAM USA
    closest to the lens that causes the issue The paint is kind of shiny and it reflects against the inside of the dome when pointing into the sun I was spending so much time Photoshop correcting the reflections I figured there HAD to be a better way I ve gone to great lengths trying to solve this issue I tried blacking out the white letters with a black Sharpie and I ve even tried various typed of black matte paint Getting optical coating on my dome port helped a lot as it significantly minimized internal reflections Still in a few situations I was still getting those darn reflections Very exasperating indeed Then a friend wrote that he had had good luck taming different reflections inside his housing with a self adhesive black matte material available from Edmund Scientific Certainly worth a try So today a big roll of the black flocked paper arrived Far more than I needed to fix the lens but hey for 10 plus shipping of course I m glad to have it around Now how to make it fit the lens Well the outside circumference wasn t too hard as I used a 77mm threaded filter

    Original URL path: http://www.seacamusa.com/lenses-ports-domes/canon-17-40mm-reflections-dome-port/ (2016-02-17)
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  • The superiority of the S6 connector - SEACAM USA
    water droplets if they do occur happen on the exterior of the connector away from electrical pins easy insertion with no registration issues like with Nik V connector system 6 pins to enhance TTL capability for Canon cameras Nikon only requires 5 for I TTL but Canon uses 6 for E TTL Already widely accepted in Europe To use S6 bulkhead will requires installation on the Seacam housing either from the factory on new housings or as a retrofit on existing housings via Frink Photo You will also need custom cords for your strobes If using the Seacam Seaflash 250 it can be ordered with S6 If using Ikelite or Sea and Sea Inon both use the same cord Seacam has replacement cords available These cords are far more robust than the standard factory issue synch cords and a joy to use I have appealed to housing and strobe manufacturers to move away from the archaic Nikonos V connector If your housing already has a Nikonos 5 pin bulkhead I don t necessarily recommend going to the expense and hassle to upgrade to S6 But for any new housings ordered our recommendation is to embrace S6 Actually I use an

    Original URL path: http://www.seacamusa.com/other-reference/superiority-s6-connector/ (2016-02-17)
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