Neutral said:Why you want to use crop mode in camera ?candc said:quod said:Agreed. I do a lot of bird in flight shots, and I don't think we are there yet with mirrorless. The A6300's live-view mode for tracking sounds like a good innovation for normalizing high-speed wildlife photography between mirror and mirrorless designs. As nice as the A6300 looks on paper though, it still has issues. No joystick, unknown buffer size, small battery, not very rugged/weatherproofing, etc. I'm not worried about the size, as I can balance the lens/camera on my gimbal. The reality is that I have to do a lot of adjustments in different zone modes, and I often do them during fast-moving sequences. Without a joystick (and AF area select button), I don't see how it will work for me unless Sony's system is so smart I don't have to worry about it. Buffers are key, too. For slow moving wildlife though, the A6300 dynamic range + crop would be wonderful.Reality Merely Illusion said:I don't think they will replace DSLR's any time soon for most (wildlife) users (ergonomics alone with long glass), but these last few years we have seen some interesting developments !, Being able to use all those nice canon lenses on sony's with peaking, and now even with (possibly reliable) af.... and maybe even some tracking capabilities...
I do a lot of bif shooting. There seems to be a lot of speculation about how good the Sony cameras are for this but not a lot of first hand reports. I think next time out I will give it a go with the a7rii and 400doii. I will shoot crop mode and see if the af can keep up. Ive gotten used to the camera now so I know how to change af functions and such on the fly.
This doesn't give any benefits other than reduced image file size from the camera.
Object resolution in crop mode is the same as in FF mode (number of pixels per object projection on the sensor is exactly the same). AF speed is the same.
But using camera crop mode you loose wider angle of view and this makes it more difficult to keep very fast moving objects in frame and for longer focal length even to catch them in the frame.
I was trying both crop and FF mode on a7r2 with 100-400 m2 + 1.4 extender (FF focal length is 560mm) and found that is is better to do crop in post processing rather than limit angle of view using in-camera crop mode. With 840mm resulting focal length using in-camera crop mode it was extremely difficult to keep fast moving object in frame, sometimes just not possible, and also difficult to get object in frame first time ( find it) when it is erratically moving.
So wider angle of view in FF mode make things more easy.
On my a7r2 with 100-400m2 + 1.4 extender continious AF was working well enough even at max focal length, see example I posted above. For best results it is required to have latest FW both in a7r2 and Metabone IV adaptor ( 3.0 for a7r2 and 0.47 for Metabones).
But for still or slow moving objects in-camera crop mode is useful as allows to get smaller image file size out of the camera.
crop mode to keep the files sizes down (18mp) i don't know if the frame rate is any faster in crop mode but the buffer should be more?
i like to have the bird filling about half the frame so i will try some different options like 400mm crop mode vs 560 ff and see what seems to work best. i use 600 on a crop body quite a bit. i am pretty good at tracking.
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