Thank you for posting this, Robert!

DSC07881.jpg I like the idea using the diagonal grid pattern, its really and quick and easy to see the area of sharpness! Best, Robert Thank you, Robert! I am too lazy to do focus stacking and shooting it diagonally at an angle makes sure that the picture is in focus "somewhere" across the image ci...

Do you know to what extent the Nikon lens vignettes on full frame? Just did a quick shot with the 7-element Scanner Nikkor and Sony A7rII at 1.2x magnification which I think is best for full frame. There is a slight drop in IQ beyond an image circle of 32mm but given the small size of the lens it i...

A lot depends on how you define "Image Circle". Indeed a bit beyond where I tested, the lens begins to "vignette", ie the image goes dark. Some would say this is the edge of IC, but my (loose and variable) criteria is that the edge of the IC is the point where the sharpness and/or CA have noticeabl...

The 8000ED projects 63.5mm (specs according to Nikon) on a 57.5mm sensor (measurement done by Enrico Savazzi), i.e. the lens is designed to cover 57.5mm at a magnification of approx. 0.9x. BTW, the dot on the lens is facing towards the sensor, this is how the lens is mounted in the scanner. Your tes...

Good looking lens mount Lothar. Custom machined I assume? From memory both the Nikon 7 element 45mm lenses I have, one white dot, one pink dot, are best dot towards the camera sensor at magnifications, that is my memory is correct :D ... Thanks Robert, yes custom machined but as a base I use a meta...

nielsgeode wrote: It's a shame I have the 8000ED lens here in my drawer for a year without even having used it even once.

It's a great lens. Give it a try.

Flowers V by Olaf Gnau, auf Flickr

Hi Niels, according to my MTF tests and others' tests and experience, about 90% of all lenses we tried benefit from using tube lens instead of plain extension tubes (or bellows). But majority of scanner lenses (Coolscan 8000 included) perform better when just extended. And their magnification sweet...

As Lou says, the 7 element Scanner Nikkor is designed to cover 24mm on the object size and approx. 32mm on the sensor side, i.e. 1.33x magnification. The dot shows towards the sensor, it doesn't perform well on full frame the other way around. I like it for hiking on full frame when corner quality i...

The 7-element Scanner Nikkor was built to project 24mm film (the short edge of 35mm film) on a 32mm sensor, i.e. it was designed for 1.33x magnification. Using the lens on full frame is already stressing the design quite a lot but it works reasonably well. Using it at 2.3x is simply too much... just...

The 7-element Scanner-Nikkor ED @ 1.3x looks strange to me. I use it on full frame @ 1.2x and it performs very well at the edges. Was it mounted in the intended way, i.e. with the paint dot towards the sensor?

Great pictures, Markus!

Markus, I like this picture even more!
Thank you for posting your setup. I think I need a linear stage with micrometer adjustments...

etalon wrote: Here is my very first pic with that beautyful lens.

Outstanding work, Markus!
I am looking forward to seeing more pictures taken with that lens.