I own, use and really like my Df. I agree with Bob. Best coment on this thread.

Thanks to all! I got my answer.

It is a friction clutch for manual focusing.

Bingo! TYVM

Not that I can see, Thanks!

I have this lens. I like it a lot, but don't have and can't find a manual for it. The question that I am trying to answer is; What is the function of the mark on the ring right behind the focus ring? The mark is an A, a long line and a dot.

If you know, or even better if you have a digital copy of the manual I would love to find out.

(Download)

The file is 18MB. I reduced its size to 2MB and it still won't load. Sorry, I give up.

Well crap. I can't get it to attach now.

Photo: (oops)

At my age I have 2 issues. First, I can't focus as quickly or accurately as i would like. Second is my lack of lightweight equipment that I can carry easily. I purchased a Sigma 170-500. It isn't light, but it replaces a couple of other heavier options. The reviews are mixed, but some mention a lack of sharpness at 500mm. This shot is with my Df at 500mm, f8, and 1/250 sec. It was handheld, which is a bit of a challenge of course.

I am quite pleased with the sharpness. It is uncropped. I added an "autofix" which boosted the vibrance I think, and sharpened it as usual.

I have, and use the book for Elements 10. Great book!

I'm pretty sure they would fit in a large flat rate enveloper fore about $8.

Thanks!

The 105mm 1.8 Ai-S is an very good lens. It's fast, sharp and well made, however it is not a "macro" lens. It has a close focusing distance of about 3 feet or so. The image formed will not be much of a "macro", more of a closeup. Yes, you can get larger image if you use extension tubes. Extension tubes are in my kit almost every outing.

You would probably be better served by an actual macro lens. Nikon labels them "Micro", but in our use here the words are interchangeable.

You probably don't need the fast speed of an f 1.8 lens if you primary goal is primarily macro. If closeup is your primary goal you would be better off with the Nikon 105mm F2.8 Micro Ai-S, or even the Nikon 105mm f/4.0 Micro Nikkor. Both of these will focus to a 1:2 ratio (without an extension tube).

If you can afford it I would suggest the AF versions, even AF VR. I have not used the newer lenses, but the are on my wish list.

Don't believe everything you hear on this forum. Not everyone is as familiar as they would like to sound with many of the topics which are brought up.

Watching for myself.

Close, but not true. For example the 55mm Micro Nikkor AI-s only focuses to 2:1 unless a PK-13 is added. In contrast the same lens in the AFd version does focus to 1:1. Look at the lens specs closely to make sure the lens you are getting is a true 1:1 if that is what you want.