Search found 593 matches

by dmillard
Fri Feb 21, 2020 1:53 pm
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 118
Views: 12194

I just tried ordering again, and saw an incorrect/incomplete address warning when returning to the website from PayPal due to the state field being empty (although I had entered it when registering). I re-entered it, and things went smoothly. I had hoped to buy several of the targets so that I could...
by dmillard
Fri Feb 21, 2020 8:33 am
Forum: Equipment Discussions
Topic: shared reference silicon wafer for comparisons
Replies: 118
Views: 12194

I got down in their website to the point where I had to enter my shipping address, and the drop-down menu for "Country" included the US. But I couldn't get the Paypal option to work. (They also wanted my date of birth!!!) Would you like to start a business reselling these to Forum members? I'd glad...
by dmillard
Sat Feb 01, 2020 11:54 am
Forum: Equipment Discussions
Topic: Printing Nikkor 105 f/2.8 A on GFX100
Replies: 5
Views: 755

The Printing Nikkor 105 A is a very impressive lens. However, you may be interested in nathanm's 1x test on his PhaseOne sensor (67mm diagonal) in which he showed that a Schneider MacroVaron had better performance at the image edges. https://www.photomacrography.net/forum/viewtopic.php?t=33627&highl...
by dmillard
Fri Jan 03, 2020 12:27 pm
Forum: Equipment Exchange
Topic: Nikon Coolscan 8000 ED Scanner Lens
Replies: 5
Views: 2637

aidanmoore wrote:Hi...I'm interested in the 8000 lens. Is it still available?
PM sent.
by dmillard
Thu Jan 02, 2020 10:15 am
Forum: Equipment Exchange
Topic: Nikon Coolscan 8000 ED Scanner Lens
Replies: 5
Views: 2637

I'll leave the Nikon scanner lens here for another week (until January 10), and then move it to eBay. I will consider reasonable offers. :)
by dmillard
Mon Dec 16, 2019 11:43 pm
Forum: Equipment Exchange
Topic: Want to buy: Gretag 120mm Lens
Replies: 0
Views: 1103

Want to buy: Gretag 120mm Lens

If anyone has an extra copy they would consider selling, please contact me.

Thanks,
David
by dmillard
Mon Dec 16, 2019 9:29 am
Forum: Equipment Exchange
Topic: Nikon Coolscan 8000 ED Scanner Lens
Replies: 5
Views: 2637

Nikon Coolscan 8000 ED Scanner Lens

I'm reorganizing my workspace and passing on some duplicate/underused equipment - more to follow. Please send me a PM if you have any questions. Nikon Coolscan 8000 ED Scanner lens , with Raf adapter - $275 + shipping Sold Minolta 5400 scanner lens, with Raf adapter - $225 + shipping Sold Rodenstock...
by dmillard
Tue Nov 19, 2019 7:12 am
Forum: Equipment Discussions
Topic: Too good to be?
Replies: 27
Views: 2157

I have to confess that several years ago, one early but memorable morning, I fumbled a Mitutoyo 10x objective when I was screwing it into position. It fell through my fingers just a short distance to the counter top, and suffered no visible marks on the surface of the glass or barrel. However, the i...
by dmillard
Wed Nov 13, 2019 6:00 pm
Forum: Equipment Discussions
Topic: Plustek 120 Medium Format Scanner Lens Test Results
Replies: 18
Views: 1747

Re: Plustek 120 Medium Format Scanner Lens Test Results

The specs for this scanner are amazing, too good to be true of course, 5300 ppi, 60mm scan area, APO corrected, 8 element lens. I would recommend the lens if you can find one of these scanners for a good price. They have been discontinued a couple of years ago and were sold under 4 different labels...
by dmillard
Tue Oct 15, 2019 4:03 pm
Forum: Equipment Discussions
Topic: $2.50 Rogonar-S v $250 APO-Rodagon-D v $1K Canon MPE Test
Replies: 32
Views: 2758

RobertOToole wrote: There is a test sample on the way to me already including some others that look interesting like a 4/25 Ysaron. I'll post my findings when I get the box.
Hello Robert,

I'm glad that you're the recipient of the sample platter! I look forward to seeing your results.

Best,
David
by dmillard
Tue Oct 15, 2019 2:43 pm
Forum: Equipment Discussions
Topic: $2.50 Rogonar-S v $250 APO-Rodagon-D v $1K Canon MPE Test
Replies: 32
Views: 2758

In case anyone missed it, there are currently some 35mm fixed-aperture Rogonar S lenses here for a very affordable price:

https://www.ebay.com/itm/174065000145
:)
by dmillard
Wed Jul 31, 2019 8:13 pm
Forum: Equipment Discussions
Topic: Longest focal length macro lens available (high quality)?
Replies: 7
Views: 1931

The Voigtlander 180mm f/4 Apo Lanthar is a compact manual focus lens that produces sharp images with gentle transitions. However, it's limited to 1:4 magnification, and it has become expensive due to increasing scarcity.
by dmillard
Tue Jul 16, 2019 8:08 pm
Forum: Equipment Discussions
Topic: Sony A7R IV without focus bracketing?
Replies: 20
Views: 6375

TheDocAUS wrote:No Sony A7 series camera (or the A9) has focus stacking. It is not on Sony's radar.
But this thread suggests ways to get around that shortcoming: https://www.dpreview.com/forums/thread/4314348
by dmillard
Tue Jul 16, 2019 3:06 pm
Forum: Equipment Discussions
Topic: Sony A7R IV without focus bracketing?
Replies: 20
Views: 6375

Wow, 16-image pixel shift technology! 240Mp!! If it has focus bracketing I'd sell my Panasonic S1R. Wow is right! Even without focus bracketing (which would be very nice, but I haven't seen it mentioned in any of the announcements), it would provide over 100Mp pixel shift images in APS-C crop mode,...
by dmillard
Mon Jul 15, 2019 6:36 am
Forum: Equipment Discussions
Topic: Piezoelectric focuser on eBay
Replies: 76
Views: 12661

mawyatt wrote: I'm getting ready to order additional components for the entire setup including on boards DC to DC Converter, let me know ASAP if you want the parts and PCB. Best,
I'm very interested in the parts and the PCB. Thank you for investing your energy and insight into this project.