Lens advice for bird photography

[KentYeti]

Originally Posted by rogpow

The full frame FX D3S is a 12MP camera with a resolution of 4256x2832 pixels - virtually the same as a DX body such as the D300S with 4288x2848 pixels.
The pixels in the D3S are therefore larger that in the D300S and can gather more light, more efficiently.
This is why the D3S performs better at higher ISO than DX bodies. However, the higher pixel density of the DX bodies allows for greater cropping and enlargement than the FX bodies.

Hope that makes sense.
Rog

Rog, just read nearly the same words on Ken Rockwell's web site! So many thanks for the above, it makes complete sense to me now.

Richard. Glad you've got your lens. Please keep us updated on how it goes.

[rogpow]

Originally Posted by KentYeti

Rog, just read nearly the same words on Ken Rockwell's web site!

He must have copied me!
I don't usually pay much attention to Mr. Rockwell's articles as he's not my favourite "authority" on Nikons, but he's right this time!

Rog

[johnf3f]

I have the Canon 300mm F4 IS, which produces excellent images on all my SLR's (digital & film) the F2.8 is simply more of the same. The Canon 300mm F2.8 is the star of the Canon (or any other?) range of telephoto lenses.
My main camera is a Canon 1D4 (1.3 crop) and 300mm makes a great walkaround focal length, my F4 allows fairly vicious cropping - the F2.8 allows a bit more!
I can't help feeling that 300mm is a bit short for birds, especially with a 5d (my "Other" digital camera is a 5d Mk1) as I am always searching for longer focal lengths on smaller birds. I even consider my 600 a bit too short for Kingfishers and the like, most of the time!
Regardless of the above the Canon 300 F2.8 is simply a stunning lens and will serve you well for a long time, also F2.8 can be VERY handy especially with converters.