jeanphilippe Goube

I don't see the point. I have the 800 FL and the 400 FL, and I can't carry more when I'm on the field taking pictures of birds. I address the intermediates focals by use of the 1,4 TC. I'm not a ...

I think I'll end up with only the 24-35 Sigma plus the new milvus 18 mm which is a new optical design from which I have great expectations. Only 2 lenses to carry, I'm not an ultra wide fan anyway.

Obviously not as flare resistant as the Zeiss

Have a look on the test here http://www.photozone.de/nikon_ff/988-zeisszf1528ff

For me, pixel density of the D750 is too low and the lens ourresolves the sensor, plus the presence of an AA filter; you are measuring the resolving power of the sensor. It is another story with ...

Insufficient pixel density to remove it. Remember, D5 has AA filter, D500 has not.

Plus the new prime engine, plus the new BSI Sony sensor... that's more than enough for a D810 replacement. And doesn't need any R&D investment

There is a press conference scheduled on the 19th. They will not certainly come and say "we have nothing to say". I'm waiting with confidence

At f22 you measure mainly diffraction effect. We can expect a prime to outperform a zoom, that's why I was interested in comparison with another 15 mm. That said, your images seems sharper than the ...

There are sample photos available on lenstip.com, which let us expect a full review of the lens very soon. http://www.lenstip.com/2199-news-Irix_15_mm_f_2.4_-_sample_images.html Vignetting is very ...

By the way, the 15 has just been tested by photozone. As it is the same optical formula, we can expect the same results from the milvus. In summary, distorsion well controlled, huge vignetting wide ...

When the wiring of the sensor is on the illuminated side, some photons hit the wiring instead of the photoreceptor which needs to be smaller. With the back side illuminated the wiring is on the ...

Thanks Marianne, if you have only to get 20 % closer with the 105, to get same magnification, this shows a fair amount of focus breathing with the 200 f2? Cheers

I think that spherical aberration must not be fully corrected (via aspheric elements) to keep a pleasant bokeh. Hence this focus shift. Cheers

I own the 400/800 FL combo. I seldom use the 800 handheld, it is not so heavy but the IQ drops when not used properly (with a D810). With a monopod it is OK. For handheld shots I use the 400 + 1,4 ...

All this discussion to argue if the D820 will be 6 or 7 fps... that's funny :-)

Plus the new Expeed 5 processor which should allow more FPS. If I take the 14 FPS of 20 Mpix of the D5 as a reference, the processor should allow 7 fps at 42 Mpix.

You must add VAT for US purchase

I have an offer at 2250 euros from my usual local reseller in France. You can order via internet to be delivered in Germany if you want

I'll consider if the sigma art series is available. I'll use the mount change service. For the moment I own the 50 mm, the 24-35 zoom and the 20 mm. None of them are available on the K mount. Using ...