Re: You don't need to use those ISOs
samtheman2014 wrote:
paul cool wrote:
samtheman2014 wrote:
Ab Latchin wrote:
Not really. It is a technology and light thing. For example Canon FF sensors set to stops higher iso will not raise shadows as well, and neither will a Sony.
So as I said, if your ff shooter is at f11 and ISO 1600, you will be at f5.6 and ISO 400. Both Sony and Canon do not have a full two stop noise advantage and will have noisier shadows. In Sony's favor they have a lot of high resolution bodies to claw back some of the noise.
Nikon is really the class leader here, but even they are not miles ahead of the 2 stop difference.
So, sure if the FF Camera uses a larger aperture and the same iso three is lots of advantage, if they use the same size aperture and a higher iso they don't, especially not a Canon.
The thing is if you are shooting birds in flight DOF is not a challenge even with long telephoto lenses on FF . Unless the bird is a pterodactyl . Thanks to the distances typically involved { hence why you are using long telephoto lenses} . Plus shooting birds is bloody hard in the daylight so I doubt many are doing it in the dark
If you can sneak up on the wee buggers you can then shoot with shorter focal lengths . People here tend to forget that before digital came along 35mm was considered a small deep DOF format relative to other systems . While 110 film was of course a low quality toy format
Then there is of course the huge MP count available on many FF cameras such as the 45mp D850 or 42mp A7RII/III. Which allows for significant cropping whilst still retaining a large file size if really needed .There is also a far lower penalty for pushing shadows on for example a BIF shot , where the far brighter background typically results in a somewhat underexposed bird unless you choose to blow out the sky.
Here is a 19.4mp crop from a D850 which gives you a 1.5x crop factor
Original frame:

1.5X 19.4 MP crop with 100% detail sample inserted

Dof issue does happen occasionally even on m43 with bif not so much but i can nearly always shoot w/o a few occasions where it matters grey wagtail should i of shot at 5.6 think so which would of meant f11 ff ,the deer i stopped down to 5.6 to get all in focus because it was so big ,and the heron i should of stopped down also to 5.6 to get more wing in focus.to say you can always shoot w/o on full frame is a exaggeration .
I was only referring to BIF , and assuming you have the right focal lengths shots of herons , deer and every other critter you can think of can be done on FF without having to shoot at high ISO { unless the light forces it of course}
A quick search through Flickr etc will attest to this . Your shots do not show shutter speeds or aperture , but the stag is pretty much static so you could simply shoot at a slower shutter speed while using a slower aperture if needed. Obviously this would not apply to faster moving subjects .
To be a proper wildlife expert the idea is to get as close to your subject as you can.
In that case I will sneak up on the blighter's and use a wide angle lens Those bloody telephoto lens can be very pricey and much more challenging to use



Yes but how much am going to gain shooting these subjects with a 600 mm f4 on full frame if i keep everything in the envelope that i use printing a3 comps ,projector shots limited res ,facebook ,flickr and even publication will only be A4 .