Marianne Oelund

1.  Obtaining a moon image that size with a 300mm lens requires a teleconverter, which isn't reflected in the EXIF. 2.  Sun shining on the airplane is coming from a 90 deg. different direction than ...

The 200-400 f/4 VR has 24 elements, and also has more accurate color balance than: AF 85/1.8D, AF 135/2D DC, AF 35/2D, AI 35/1.4, AI 105/2.5, AF Micro 60/2.8D, AI 50/1.8, AI 28/2.8, AI 28/2, AI ...

You don't need to use Uncompressed.  It's really only for scientific/technical applications where the raw files are read by custom or esoteric software that needs a regular data array for fast ...

Looking at PZ's LoCA examples, we do see a little focus shift between f/1.4 and f/4, about 10mm which is fairly typical.  This indicates SA under-correction overall, but with a fairly abrupt ...

Close subject and distant background is a good situation for the Voigtlander, especially if used at the widest apertures where its background defocus transition is harsh. But in this light, I think ...

Why are you shooting Uncompressed?

No. There must be a D5 with your name on it.

The Voigtlander is no substitute for the 58G.  Its bokeh characteristic is completely the reverse, which is fine if you need soft foregrounds, but for decent backgrounds it needs to be stopped ...

Apparently not.  Some interesting examples at photozone: http://www.photozone.de/canon_eos_ff/518-voigtlander58f14ff?start=1 At f/1.4 and f/2, the Voigtlander is showing strong outlining in the ...

I hadn't tried it on an FX camera, so you must be thinking of someone else. I'm sure it will perform better on newer bodies with CA correction.  I'm still hesitant to recommend it, though, as it ...

That's a new one.  I'll have to add it to my list.

Flat rendition results from flare in backlit situations, for example. Modern lenses like the Sigmas are more resistant to flare. From Haruo Sato: "Another result of technical improvements is the ...

I hope you weren't trying to align to the "2" as you ended up at about 2.2.

The 35/2D has very high transmission and neutral color, even compared to other simple lens designs of its era.  I do not believe you can put that down to element count alone. The microcontrast ...

Here's the Zeiss 135 f/2 Apo series along with a couple of others: As promised, very flat and boring. There is also an off-axis series posted above with the other lenses.  The 135 f/2 DC actually ...

I think what is even more important than the horizontal defocus here, is the double image. One of your lens elements has a grinding flaw where one surface was ground at two different alignments, ...

It is useful at any distance where your vision is still able to resolve two small objects 75mm apart. Perspective has nothing to do with the lens. I would really like to see you explain the ...

I'm probably as curious as you are, about the Voigtlander, so it's high on my list.  If I get an opportunity, I'll test one.

That's a great idea for those who do quite a bit of shift work. Have you tried it with a 2-image stitch?  Theoretically it should work on FX.

The second sentence refers to the function of binocular depth perception for producing a 3D effect, that is a parallax shift between objects at various distances.  For example, I can look out my ...