Search found 205 matches

by typestar
Sun Oct 27, 2019 10:50 am
Forum: Equipment Discussions
Topic: 150mm EL Tube Lens Test Results
Replies: 31
Views: 2653

Give me some suggestions for a good 50mm that would make a good lens to stack. I can't seem to find anything. I am thinking maybe the M-Componon 4/50? .... 28/80 sounds good also but 80 rear lenses are hard to find, the Componon-S 80mm seems to be okay. I would like to look into good 80mm lenses fo...
by typestar
Sun Oct 27, 2019 12:59 am
Forum: Equipment Discussions
Topic: 150mm EL Tube Lens Test Results
Replies: 31
Views: 2653

Next test up is the 135 Tube Lens Test with 8 EL lenses ... Robert, thankyou again for your work and showing the 150 mm Tubelenses. As I have a 135 mm Nikon EL and a Tominon 135 mm only, I am very curious about the 135 mm results, as this shorter FL could bring even stronger results (?) Good luck f...
by typestar
Fri Oct 25, 2019 4:02 am
Forum: Equipment Discussions
Topic: Rodenstock indus. lenses: Rodagon - Rogonar S - Ysaron Info
Replies: 57
Views: 4484

Rodenstock Rogonar-S 1:8 f=35

Another update: Rodenstock Rogonar-S 1:8 f=35 Image Quality Sample Rogonar-S + 90mm Mejiro line scan lens for 2.57x Lens ID label towards subject.... Excellent results so far, better than I expected! :D What do you think? Wow Robert - Thankyou for your testings and you update on this.... lol: once ...
by typestar
Thu Oct 24, 2019 8:50 am
Forum: Equipment Exchange
Topic: Nikon 95mm Print Lens - Photos added - SOLD
Replies: 4
Views: 1468

Re: Nikon 95mm Print Lens

Pizzazz wrote:I have one in mint condition with OEM box and mounting rings
Mike,

how much do you ask? Can you show us some photos?

Thankyou

typestar
by typestar
Wed Oct 23, 2019 8:17 am
Forum: Equipment Exchange
Topic: NEWPORT M-481-A Metric Rotation Stage in new condition
Replies: 0
Views: 1161

NEWPORT M-481-A Metric Rotation Stage in new condition

I offer a like NEW NEWPORT M-481-A Metric Rotation Stage in exzellent new condition Retail new price in Germany 396 EUR The M-481-A Metric Rotation Stage is ideal for fine 5° tuning the angular orientation of any component after rotating it to an approximate angle. An inner stage rotates 360° in a p...
by typestar
Wed Oct 23, 2019 6:08 am
Forum: Equipment Exchange
Topic: SOLD! Nikon Multiphot Condensor lenses - rare+new
Replies: 0
Views: 1136

SOLD! Nikon Multiphot Condensor lenses - rare+new

Sold now and in good hands: Out of the (rare) Nikon Nikkor MULTIPHOT Macrophoto large format system I offer the -- rare -- Multiphot Condenser Lenses - for the Multiphot diascopic base The lenses are in excellent, like NEW condition and - if - they had been used very little only. 1x Nikon Multiphot...
by typestar
Tue Oct 22, 2019 7:26 am
Forum: Equipment Discussions
Topic: $5 Rodenstock Rogonar-S 50 vs APO-Rodagon-N 50 Test Results
Replies: 15
Views: 1766

Dear Robert,

nice to see this results from the 3.5/50 and 60 mm Rogonar-S lenses
New little treasure in the world of hunted optics...

Thankyou for showing this...

Christian
by typestar
Fri Oct 18, 2019 1:28 am
Forum: Equipment Discussions
Topic: Rodenstock indus. lenses: Rodagon - Rogonar S - Ysaron Info
Replies: 57
Views: 4484

Har work of testing

By far the hardest and most time consuming part? :( .... But its worth all the time and trouble since the results are easy to reference in the future. ...... High-end performance for a low-low cost is ideal :o Robert, just to say it once more: I think here are many users / (mostly quiet?) readers, ...
by typestar
Thu Oct 17, 2019 2:31 pm
Forum: Equipment Discussions
Topic: Rodenstock indus. lenses: Rodagon - Rogonar S - Ysaron Info
Replies: 57
Views: 4484

Re: Rodenstock indus. lenses: Rodagon - Rogonar S - Ysaron I

RobertOToole wrote:Today a box arrived with about 20+ lenses ... Questions, comments welcome.
Robert, it will be nice to read again your appreciated tests :D
and to see whether some of these disregarded lenses out there could work well for us.

Best,
Christian
by typestar
Thu Oct 17, 2019 9:18 am
Forum: Equipment Discussions
Topic: Comparing macro lenses using MTF - invitation, take 2
Replies: 26
Views: 4512

Re: List correction

Christian has just posted me slight naming correction: Lens #1 is actually Reflecta iScan 3600 and the lens #2 is actually Reflecta CrystalScan 7200. I wonder what are the differences to ProScan 7200.... Dear Miljenko, thankyou in advance for your hard work of testing. I know (your) numbers will / ...
by typestar
Sun Oct 13, 2019 12:13 pm
Forum: Equipment Discussions
Topic: Sharp Rodenstock 57mm Lens For $2.50 - Too Good to be True?
Replies: 3
Views: 752

The results are not what anyone would expect. Click on the image below to see a 2500 pixel image sample of the Rogonar-S at 2.1x: Dear Robert, thankyou for your test and great to see your new discovery... If all our hunting contious on this, it seems a lot of stars out there in this univers of lens...
by typestar
Thu Oct 10, 2019 12:12 pm
Forum: Equipment Discussions
Topic: Question about the Scanner Nikkor 7 element ED lens
Replies: 5
Views: 890

Different version of Nikon Coolscan 7 element Scanner lenses

This does not look like the lenses from Super Coolscan IV scanners I have seen. As you say, the lens of the Super Coolscan IV has two grooves ... @ Enrico , (nice to read from you here!) -- The Nikon Coolscan ED 4000 lens (which you got from me and tested it for your appreciated site, together with...
by typestar
Tue Oct 08, 2019 7:15 am
Forum: Equipment Discussions
Topic: Test Comparing 8 Lenses at 3.4x Online
Replies: 10
Views: 1002

Your hard work

Thankyou Robert

for all your hard work, again!

Nice to see your (new) findings and the power of the Xenon 35 mm lens(es).
It will be harder now to find new undiscovered (and "cheap" treasures... 8)

My best wishes to you,

Christian
by typestar
Sun Sep 22, 2019 2:44 pm
Forum: Equipment Discussions
Topic: Novoflex stepping motor focusing rack
Replies: 21
Views: 3138

Novoflex

... novoflex's 0.2um number sounds great to me, but I'd expect that to be rather optimistic (ie marketing) numbers. should work up to very high magnifications. also, novoflex does provide the thing as a fully featured integrated system, so it should be useable straight of the box. that also means t...
by typestar
Tue Sep 17, 2019 3:42 pm
Forum: Equipment Discussions
Topic: Novoflex stepping motor focusing rack
Replies: 21
Views: 3138

what a steal :) .....solid build quality but not really top of the line stuff .... personally I prefer more industrial build quality, but that usually involves some DIY adaption. ....its smallest repeatable step distance is 0.2µ! @chris_ma: what product on market would you point to for "industrial ...