Search found 205 matches

by typestar
Tue Oct 23, 2018 4:17 am
Forum: Equipment Discussions
Topic: Mitutoyo 10 Objective Tube Lens Tests
Replies: 31
Views: 4852

Mitutoyo 20X NA 0.42 -- pushed down to 10x

... It would be interesting to test all objectives with a very short tube lens, short enough to show at least a trace of vignetting. A 90mm or 100mm or 105mm lens, for example. Thanks for the idea Lou.... I can try each objective with one good shorter tube like a Sigma 150mm or the Makro-symmar 120...
by typestar
Thu Oct 18, 2018 11:15 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

Screen Cézanne Scanner -- not a bargain :-)

As it was the best in the testing (sharpness, overall image quaility...): If you have "some" money and look for a SCREEN Cezanne Elite Scanner, optical. res. = 5300 ppi -- and if you are interested in its lens inside... here is one sitting - and: .... waiting ;-) https://www.ebay.co.uk/itm/Screen-Ce...
by typestar
Thu Oct 18, 2018 7:17 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

Hi Ray,

great, that you find the article interesting

I also offer the "real" Magnagon 5.6 / 75 mm, with fixed aperture (same as the ebay-offer in spain) I offer here for a good price for the highly appreciated members. The red filter is removable, of course...

Best wishes to all of you,

Christian
by typestar
Thu Oct 18, 2018 3:57 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

Lou Jost wrote:Christian, in the case of the Scitex scanners... for scanning 35mm film, these same Scitex scanners used lenses (110mm) that were well-matchedto the sensor. The Scitex 110mm is really good.
Dear Lou, thankyou for pointing to this!

Christian
by typestar
Thu Oct 18, 2018 3:49 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

Lenses in Film- and legacy Highend-Scanners

Sorry Christian, the LS-30 deal fell through. ...However .. an offer was accepted on another LS-30, so now I just need to wait. I will do a quick report on the physical aspects of the lens, but not sure I will be able to test it effectively if its FL is too short. Scitex S-2 and Scitex S-3 series o...
by typestar
Wed Oct 17, 2018 10:25 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

Christian, I think the software and lens advances went hand in hand. There was no need for sophisticated lenses as long as the sensor was primitive. Hi Lou, yes this sounds logical. As far as we found out in this group, in all the industrial high-end scanners as the Israel-made Creo (finally Kodak)...
by typestar
Wed Oct 17, 2018 10:06 am
Forum: Equipment Exchange
Topic: SOLD: Rodenstock Magnagon 75mm f5.6 / industrial vers. new
Replies: 0
Views: 1555

SOLD: Rodenstock Magnagon 75mm f5.6 / industrial vers. new

SOLD: Rodenstock Magnagon 75mm f/5.6 - NEW - in good hands now. I have taken this in some hours work out of a 110 Kilogram FUJI Fujifilm C 550 Lanovia highend Scanner (designed for 5000 ppi resolution; the description of the optics in the Scanner manual defines that) - so no scratches on the barrel...
by typestar
Wed Oct 17, 2018 8:36 am
Forum: Equipment Discussions
Topic: APO Corrected 1.35x Scanner Lens For $20 PrimeFilm 3650u
Replies: 78
Views: 12036

I just picked up an LS-30 on eBay Hi Ray, can you already report on the power your Coolscan III lens, compared to others... ? According to the Nikon specs its a 6 lenses in 4 groups lens. Despite the fact that is has (officially) no ED lens included (?) - I believe the most straitening part on the ...
by typestar
Wed Oct 10, 2018 9:16 am
Forum: Equipment Discussions
Topic: Stacked Lens vs APO objectives at 4x with Surprising Results
Replies: 88
Views: 9012

hidden gem...

For what it's worth, the inexpensive, lightweight Minolta 35mm f/2.8 that I just tried had a working distance of 32mm. I'll go through my lens drawer, and just possibly find a hidden gem. :wink: Thats the WA 35mm I assume, not the 30mm enlarger lens? The enlarger lens had serious CA issues. @dmilla...
by typestar
Wed Oct 10, 2018 4:45 am
Forum: Equipment Discussions
Topic: 5x Test Coming Soon but I Need Some Feedback First Please
Replies: 35
Views: 3405

RobertOToole wrote:...
I plan to upgrade to a pixel shift body in the future and these have better dynamic range I believe ...
Robert -- which body, how near the future for this change... ?

typestar
by typestar
Sun Oct 07, 2018 3:05 pm
Forum: Equipment Discussions
Topic: 5x Test Coming Soon but I Need Some Feedback First Please
Replies: 35
Views: 3405

Hi Robert,

I would like to see Center/Center then corner/corner in one 2500px image.

And I am very exited about the results - especially the sharpness results of the 7,5x Mitu in this "grail" ;-)
Thankyou again for your great efforts - for all of us...!

Christian
by typestar
Sun Oct 07, 2018 3:15 am
Forum: Equipment Discussions
Topic: Stacked Lens vs APO objectives at 4x with Surprising Results
Replies: 88
Views: 9012

Just a heads up. The Makro-Symmar 120/5.6 are $1300 new at Schneider Optics USA but they are $299 from one of my favorite seller location in S. Korea. They show 2 units left in stock. This community is very fast : ;-) http://www.photomacrography.net/forum/userpix/846_sold_now_1.jpg @ Robert: You me...
by typestar
Mon Sep 24, 2018 5:49 am
Forum: Equipment Discussions
Topic: 5x Magnification Ideas and Suggestions
Replies: 27
Views: 3411

I was going to reply that I had given up on stacking combos ... Which telephoto? ... The Sigma 150 macro would give me a little over 5x. Hi Robert, I believe you do not plan to use "relay"-lenses below 135mm - but -- IF a combo -- what about using the Nikon 100 mm Scanner Lens as a base? Are the 10...
by typestar
Fri Sep 21, 2018 12:03 am
Forum: Equipment Exchange
Topic: FS: Sigma Life-Size Attachment 52mm
Replies: 0
Views: 1217

FS: Sigma Life-Size Attachment 52mm

I sell

1 Sigma Life-Size Attachment (52mm) in original plastic case:

I ask 40 EUR (+ shipping) - no paypal-fees if your want to use normal European EUR bank transfer). I ship from Austria

Thankyou for your interest !
& best wishes:

typestar
by typestar
Wed Sep 12, 2018 4:24 pm
Forum: Equipment Discussions
Topic: Comparing macro lenses using MTF - part III - 0.66x
Replies: 31
Views: 3619

I remember seeing the MTF, etc curves as published by Rodenstock but for some reason can't find them now.... Does anyone have ... perhaps a saved copy? Hi Ray! I just have checked my saved copy from Rodenstock -- The German and English language catalog has first been published in May 2009 (as the o...