Search found 49 matches
- Fri Jan 20, 2023 3:41 pm
- Forum: Equipment Discussions
- Topic: (Help) DIY motorized microscope stage
- Replies: 15
- Views: 2883
Re: (Help) DIY motorized microscope stage
This might work for your Polyvar. I have similar setup. https://www.ebay.com/itm/264266985622?hash=item3d878a3096:g:h8wAAOSwRdta3TCZ&amdata=enc%3AAQAHAAAAoHEqKBE3MDzTMPBD8o2fqX%2FWXHzY32xskAxoIqi0BMRpd6DFfdbCQqRjqY5%2BWzBcLjaYVBfl1lF1Z%2F9FHJFv0Pr5Sdlf8IpMxNpGd%2BS1%2FLeJ1hcjre03GEb57Zw9nS9s3%2BBYse...
- Mon Dec 21, 2020 8:57 pm
- Forum: Equipment Discussions
- Topic: 8000ED Scanner lens mounting idea
- Replies: 7
- Views: 2521
Re: 8000ED Scanner lens mounting idea
There are some details about my setup here. viewtopic.php?f=25&t=39532
- Tue Aug 18, 2020 1:28 pm
- Forum: Equipment Discussions
- Topic: Zeiss S-Orthoplanar 60mm f4 vs Minolta 5400 at 2X
- Replies: 0
- Views: 2476
Zeiss S-Orthoplanar 60mm f4 vs Minolta 5400 at 2X
I recently finished adapting this rare lens to the Sony A7R II for general photography. This adaption allows focus from 1:3 to infinity. Lens details is here: http://www.macrolenses.de/ml_detail.php?ObjektiveNr=78 by Dr. Klaus Schmitt. After one week of testing, I must say that the sharpness and smo...
- Sun Jul 12, 2020 6:00 pm
- Forum: Equipment Discussions
- Topic: Test wafer distribution: Many features, includes res chart
- Replies: 80
- Views: 27611
Re: Test wafer distribution: Many features, includes res chart
The chip came to California in two long pieces. Not ideal but workable. Thanks for the time and efforts.
Chuong Nguyen
Chuong Nguyen
- Sun Jun 07, 2020 12:12 pm
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: weevil 5x (high resolution)
- Replies: 8
- Views: 2526
- Wed May 27, 2020 1:26 pm
- Forum: Equipment Discussions
- Topic: Polyvar Dic system questions.
- Replies: 16
- Views: 5979
I have a nice Polyvar MET that I've been slowly cleaning up and still working on it, so it is a work in progress. I have disassembled the MET and cleaned the internals. The aftermarket Semprex stage needed a small gear and a couple other small items that were damaged while in transit. I have spoken...
- Thu May 21, 2020 3:10 pm
- Forum: Equipment Discussions
- Topic: Etendue Mejiro lenses on eBay now
- Replies: 41
- Views: 7157
- Thu May 21, 2020 10:31 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Prosopocera lactator
- Replies: 7
- Views: 1815
- Wed May 20, 2020 10:02 pm
- Forum: Equipment Discussions
- Topic: Amazing Wafer Stepper Setup
- Replies: 20
- Views: 3470
I glued a Zeiss coverslip on the objective permanently. I works great.ray_parkhurst wrote:I have perhaps a silly question regarding coverslips...for high NA objectives which require them, how critical is their position between subject and front of lens? You can probably figure out why I ask the question...
Chuong
- Wed May 20, 2020 9:31 am
- Forum: Equipment Discussions
- Topic: Amazing Wafer Stepper Setup
- Replies: 20
- Views: 3470
- Thu May 14, 2020 8:56 pm
- Forum: Equipment Discussions
- Topic: Zeiss S Planar 25 1.6 micro lithography lens reversed
- Replies: 10
- Views: 2103
- Thu May 14, 2020 11:28 am
- Forum: Equipment Discussions
- Topic: Zeiss S Planar 25 1.6 micro lithography lens reversed
- Replies: 10
- Views: 2103
The e-line of mercury was the main wavelength for the Ultra-Micro-Nikkors and early Zeiss. Several years ago Chuong posted the results of another Zeiss e-line stepper lens, but using white light. I was surprised that it was not too bad even with white light. But the 436nm and 405nm lenses seem to d...
- Thu May 14, 2020 11:15 am
- Forum: Equipment Discussions
- Topic: Zeiss S Planar 25 1.6 micro lithography lens reversed
- Replies: 10
- Views: 2103
Chuong, From what Marco comments, this optic must have been produced at the beginning of the series, that is, approx. In 1974, ... about half a century! At that time, Zeiss West, Zeiss East (DDR), Nikon produce E-line lens for lithography. They are all better that Mitu 10 in visible light. Well, a ...
- Wed May 13, 2020 9:56 pm
- Forum: Equipment Discussions
- Topic: Zeiss S Planar 25 1.6 micro lithography lens reversed
- Replies: 10
- Views: 2103
I love these lenses. I see the pixel dimensions are 16000 x 12000. Was this a pixel-shifted image, or did you shift the whole lens+camera, or did you shift the sensor, or did you use a medium format sensor? The camera/lens was shifted for a 2x2 stitched image. This lens has a IC of 80 mm. So I coul...
- Wed May 13, 2020 8:39 pm
- Forum: Equipment Discussions
- Topic: Zeiss S Planar 25 1.6 micro lithography lens reversed
- Replies: 10
- Views: 2103
Zeiss S Planar 25 1.6 micro lithography lens reversed
This 5X8mm PSC circuit on a wafer vintage 1987 was photographed using the earlier version of the S-planar 25mm 1.6. Resolution is impressive. http://www.photomacrography.net/forum/userpix/1872_Zeiss_Wafer_BW_1200pix_1.jpg Lens Zeiss S-Planar 25mm 1.6. Design lighting 5460 e-line; Actual lighting: gr...