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Forum: Pentax Medium Format
05-04-2011, 08:04 PM
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For anyone else interested in using their iPad to receive near-realtime images from their 645d (or any camera with 2 SD cards), I thought I'd share my experience.
I'm new to my 645D. My most often used style of shooting is wide angle landscape, long exposure with filters, and striving for critically sharp focus throughout the frame.
Coming from the D3x, I was comfortable using Liveview and the 24mm PC-E Tilt Shift to confirm I had sharp focus prior to taking the shot.
My copy of the 35mm f/3.5 manual lens is capable of terrific sharpness, but there is a noticeable difference in edge to edge sharpness with the slightest change in focus. My target focus setting isn't the hyperfocal length indicated on the lens, but a marked spot that I've settled on after much testing.
While I'm not able to check critical sharpness prior to shooting, I went for the next best thing, checking immediately after the shot on my iPad.
I purchased the eye-fi card and set it up for direct mode. This basically makes the eye-fi card a wifi network broadcaster, which the ipad can connect to. This works in the field, with no other wifi networks, and no need for a portable wifi router.
I have a 32GB SD card in slot 1, set to RAW
I have the eye-fi SD card in slot 2, set to small JPG
There is now a free ipad app for eye-fi, but I went ahead an purchased shuttersnitch as the app to manage the connection and receive the photos.
It takes about 10 seconds for the jpg image to show up in shuttersnitch on the iPad. I can double-tap on any area of the image, and zoom to 100% in the image. My 1st gen iPad takes a second or 2 to render the details when zooming to 100%, but it's totally workable for me.
For my intended use, this is a great solution. After setting up on the tripod and establishing my composition, I can take a test shot, and use the iPad to ensure I have the sharpness I'm looking for. Once I tweak the focus to get where I want, I can shoot away, knowing what I'll be working with back home in processing.
For the use case of a slow, deliberate landscape shoot, with manual focus, I find this to be a nice compliment to the 645D.
Hope this is helpful to anyone else contemplating similar ideas.
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Forum: Pentax Medium Format
03-04-2011, 05:48 PM
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I just wanted to make a post to say how happy I am with the 645D. I knew if used properly could produce sharper images and more dynamic range than my canon....but I now see first hand how good it is.
I just got through browsing all of the pictures I took Yosemite with my 645D and the pictures my wife took with the 5D MKII. In some areas we took similar photos. The overall quality of the file is just simple amazing. Contrast, sharpness and Dynamic range are in a whole other class. My wifes shots were perfectly exposed but in some of the shooting conditions we had bright light on mountains and foreground in shade. On the canon it created an image that looked ok on the mountains but the foreground was just way to dark...even after trying to recover it looked bad. The detail is simple stunning at times, even at the corners.
I won't be getting rid of the 5D because I use it for many other things, and I am a huge fan of the system. Pentax has a winner here. All of my lenses used worked out great even in the corners.
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