TS-E on the cheap? For architectural photography

brightcolours wrote:

Steve Balcombe wrote:

brightcolours wrote:

Steve Balcombe wrote:

AmateurArchitectural wrote:

The T/S lenses benefit greatly from being used on full frame

Can I ask how? The IQ of a crop is presumably higher away from the vignetting and focus problems of the outer edges of the TS-E image circle. The difference between 18 and 20 Mp doesn't seem critical for my purposes.

The difference between 18MP and 20MP is very minor, agreed. But the higher image quality of full frame (used optimally) is significant.

He asked to explain what would give the higher IQ. In reality, the IQ differences are not that big, when you use equivalent settings.

I did not refer to equivalent settings, I specifically said USED OPTIMALLY

The whole point of a tilt lens is to use it optimally.

The rest of your post is equally ludicrous but I will just answer one point for the benefit of others:

There are cases of full frame lenses which perform better on crop - one documented example is the Nikon 70-200/2.8 which was current a few years ago when Nikon had no full frame DSLRs. It was optimised for performance in the centre of the frame and had (relatively) poor corners.

It is nonsense that this lens was "optimized for performance in the center". It is a film era full frame design, when digital DSLRs were not yet replacing film SLRs (2002 introduction).

http://www.dpreview.com/lensreviews/nikon_70-200_2p8_vr_n15/5

I do need to make one small correction - Nikon's first full frame DSLR, the D3, had been available for a few months.

What are you talking about. The D3 is a camera introduced in the 2nd half of 2007 (available later). The D2X, its predecessor, was introduced in the 2nd half of 2004.

The Nikkor AF-S 70-200mm f2.8 VR was introduced in 2002, when Nikon's top SLR was called F5. In 2004, the F5 got replaced by the F6, introduced at the same time as the Nikon D2X. The lens is a film era full frame design.

Well, I stand corrected, I did get my dates confused. However the main point stands, and you were totally wrong to describe it is a "film era" full frame design. On the contrary, it was launched in 2002 as "a lens whose imaging qualities were optimally matched to the new demands of digital imaging and the DX sensor" - according to page 1 of the same review. Which is actually what I said in the first place, before I got the dates mixed up.