jalethbridge
I like sea-watching
I think this discussion basically gets us to a place where the camera operator is the limiting factor and not the camera itself.
Without wishing to have this thread descend into yet another "all the gear" monologues, this is the reason why big twitches can be so farcical these days. Every T D & H has a massive bloody camera, and there's a massive scramble and often pathetic behaviour as they all want the money shot. That 99% of them would be incapable of getting that shot is irrelevant, but it means that whereas before I enjoyed the challenge of getting a decent rarity shot as at least I had a chance, these days I will rarely bother as I know I'm on a hiding to nothing - any opportunity I might create is almost always ruined by a dickhead. You then immediately get a wide selection of absolute junk all over birdguides, surfbirds, twitter etc, and then a whole pile of people bigging up the shots saying how great and awesome they are, and so the circle repeats itself, and there's a huge crowd of white-lens toters at the next one, all wasting their time. There should be something akin to a driving test.....
But back to FF. I don't want to spend 4k on a 1DX, and I agree that the next best FF is a 5D3. However even with the addition of a vertical grip, it is not a patch, either in handling or in many aspects of performance, on the older 1.3 cropping 1Dx series. Although the AF is much vaunted, my personal experience is that it is inferior to the 1D series. It has them beat on absolute IQ and clearly on high ISO performance, but as an all-round wildlife camera that performs day in day out and in every situation, it is not in the game, and no amount of pixels is going to change that. When you consider that a used 1D4 and a used 5D3 are not that far apart in price, and a used 1D3 is often a complete mega-bargain, I can't see that there are any difficult choices at all.
However if somebody gave me a choice between a 7D and a 5D3 as a birding camera, I would always pick the 5D3. And then I'd sell it and buy a 1D4. Or more likely a 1D3 and an airfare out of this miserable country.....
Jonathan
Agree, when you have at least a 500mm f4 lens, otherwise i would go for a crop camera when you are photographing birds.
I find it interesting reading comments such as on this thread, but it is also where I feel alienated from my fellow photographers. All the talk seems to be on technical side and little on how the ability to use the camera with either full frame or crop.
At the risk of painting a big target on my forehead, I would suggest the ability to take a good photograph, technically and creatively would matter most and which can be done equally well (or badly) on a crop or full frame camera. Secondly I would go for a good lens and lastly I would worry about the camera. Go online and you will see plenty of very poor images taken with very expensive full frame cameras.
Personally, and again at the risk of upsetting people, I would be content with your 7D - a perfectly capable camera, if you have money to spend, invest in a faster prime than your 400 mm 5.6, perfect your technique, creativity and knowledge of your subject, and when and only when you feel limited by your camera, upgrade.
Frank and Dave,
Both of you have expressed honest opinions which make a lot of sense. Thank you both for your valued input. As you both have implied, a lot of photographers may have the "best" gear available but it does not necessary make them the "best" photographers. Good old-fashioned skill and fieldcraft are as equally important as the equipment used.
Mike
The only downside of full frame is people need to take a few extra steps towards the bird. Not that hard to do with good field craft and as Roy said, the high ISO performance of the FF or APS-H will blow any APS-C sensors away. Crop sensors are no match for full frame or APS-H (sadly second hand only now) sensor bodies.
What is not lacking is scientific tests side by side of FF vs crop regarding ISO.
http://www.luminous-landscape.com/essays/dxomark_sensor_for_benchmarking_cameras2.shtml
After being on these forums for years I've often heard these terms bandied around. They are NEVER backed up with any scientific side by side controlled tests though. As I posted earlier, under ISO 800 you'd be pushed to notice the difference between a modern crop and FF. When I'm birding my walkaround ISO is 800 which is 'usually' enough for SS of 1/640 plus. Yes there are exceptions, and those exceptions show the differences of the sensor size.
And, if you're in a hide or by the waters edge, how can you take a few steps towards your quarry ? ? ?
Also are you seriously suggesting the 1D4 can't compete with the 6D/5D3/1Dx............
After being on these forums for years I've often heard these terms bandied around. They are NEVER backed up with any scientific side by side controlled tests though. As I posted earlier, under ISO 800 you'd be pushed to notice the difference between a modern crop and FF. When I'm birding my walkaround ISO is 800 which is 'usually' enough for SS of 1/640 plus. Yes there are exceptions, and those exceptions show the differences of the sensor size.
And, if you're in a hide or by the waters edge, how can you take a few steps towards your quarry ? ? ?
Also are you seriously suggesting the 1D4 can't compete with the 6D/5D3/1Dx............
I am sorry but the last time I check the 5D3 does have the AF system on the 1Dx. It just doesn't have the FPS. As a shooter with APS-C and FF camera, I can see how FF is a huge improvement in terms of low light but we give up reach in return. I have seen the most amazing bird picture taken with an Nikon D300 and Tokina F2.8. Although everyone would love to have an 1DX with an 600mm F4, you can achieve a certain quality level that is I would call professional level.if you want the very best quality in your images; even a 5DMkIII is fine, but still for action it's lame in comparison. Go shoot in some low light and see how your 7D or other APS-C performs even against an older 1D like a MarkIII.
Arthur Morris, a very well known and with confirmed credits in bird photography, regarding the 5dm3, says that if he isn't going to need the initial AF acquisition speed(of the 1dx due to a more powerful battery or w/e) and fps, he would choose the 5d3 over the 1dx due to it's larger files(mpx) hands down