Search found 955 matches

by lothman
Thu Mar 28, 2024 3:00 pm
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

Not sure if the lens I got from KEH is magical, just a mundane Nikkor 60 MM-D macro lens. I repeated again the comparison using Nikon Z6II FX camera with and without the PB-4 bellows, the results are the same. I cannot explain discordant results you are getting on your setup... Hi Iothman, Shot lym...
by lothman
Thu Mar 28, 2024 10:29 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

Thanks for the setup, but on theory the 60mm macro with floating elements should perform better at 1:1 when mounted via Nikon-F adapter to you camera.

You will achieve the same magnification mounted on the bellows, but do you achieve the same resolution?
by lothman
Thu Mar 28, 2024 4:20 am
Forum: Equipment Discussions
Topic: Caution: shipping to the USA, anti-dumping targeted at goods from China
Replies: 4
Views: 170

Re: Caution: shipping to the USA, anti-dumping targeted at goods from China

FedEx is utter garbage. My parcel was stuck in Australia for over a month because the paperwork was not uploaded correctly by the driver. I'm afraid most of your problems are homemade. For my Nikon fine focus gears when having trouble it is with Australia.I no longer ship to Australia, they have th...
by lothman
Mon Mar 25, 2024 5:49 am
Forum: Equipment Discussions
Topic: A promising new products for flocking and eliminating veiling glare.
Replies: 4
Views: 252

Re: A promising new products for flocking and eliminating veiling glare.

Macro_Cosmos wrote:
Sun Mar 24, 2024 8:27 pm
Are they really better than the standard, easily available 3M/generic flocking adhesive?
for shure in regard of fibre emission since it is a foam and does not spread small fibres like the usual flocking material.
by lothman
Sun Mar 24, 2024 2:55 pm
Forum: General Discussion Forum and Community Announcements
Topic: Loss of Robert OToole
Replies: 28
Views: 797

Re: Loss of Robert OToole

I just discovered this thread, so sad news. We lost a friend and a passionate photographer.

Robert I will miss you.
by lothman
Wed Mar 20, 2024 7:52 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

As someone who uses all three formats you mentioned, I would highly recommend buying at least two separate lens systems, one for MFT and one for FF+APS. The Olympus 60mm macro lens is excellent and ideal for slide copying, and then you don't need a bellows and you retain automation. This should sig...
by lothman
Tue Mar 19, 2024 5:21 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

I cannot comment about the Noflexar 60mm since I never tested/used/owned one. If it is any help, years ago I did my own digitizing of 36x24 mm color slides with Olympus E-M1 and E-M1 II and the Olympus 60 mm f/2.8 macro. I used a legacy slide duplicator as slide holder (without optics in the duplic...
by lothman
Tue Mar 19, 2024 2:14 am
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

I would like to ask a question similar to the the topic of the thread opener. For myself I also use macro lenses dedicated to my Sony camera for digitizing slides what works really well. At my Foto-Club at the University of Stuttgart there are lots of younger people who like to shoot film and we are...
by lothman
Fri Mar 15, 2024 1:16 pm
Forum: Equipment Discussions
Topic: Lens recomendation for film reproduction
Replies: 53
Views: 1107

Re: Lens recomendation for film reproduction

Your lens is more than sufficient for your sensor, you can stop it down to F5.6 and you won't lose any detail at 1x, 'upgrading' to a different lens most likely won't change anything. I think this is 100% correct. To be honest all those expensive Mejiro / SK Symmar, Macro Varon... on a full frame s...
by lothman
Sat Mar 09, 2024 2:51 pm
Forum: Equipment Discussions
Topic: AstrHori 25mm f/2.8 2x-5x full-frame macro lens
Replies: 52
Views: 1875

Re: AstrHori 25mm f/2.8 2x-5x full-frame macro lens

just played arouund with Nikon 20/0.75 and took the same are and scaled down to the same pixel size as the Laowa 5x.

This is somehow unfair and I saw that the wafer fools the exposure of the camera,so shots taken at -1EV improved things a lot.
Ausschnit_mit_20x.jpg
Link to bigger file
by lothman
Sat Mar 09, 2024 7:17 am
Forum: Equipment Discussions
Topic: Safe objective cleaning solution -- so much conflicting info online?
Replies: 22
Views: 743

Re: Safe objective cleaning solution -- so much conflicting info online?

Beatsy wrote:
Sat Mar 09, 2024 7:06 am
8ml Ammonia (~28%)
8g Salt
43ml IPA (99.9%)
80ml Pure liquid soap*
850ml Distilled water
superb =D> thanks for the recipe, but I don't understand the salt. This should leave a residue and probably has no cleaning effect. Are there any chemists around?
by lothman
Sat Mar 09, 2024 6:42 am
Forum: Equipment Discussions
Topic: AstrHori 25mm f/2.8 2x-5x full-frame macro lens
Replies: 52
Views: 1875

Re: AstrHori 25mm f/2.8 2x-5x full-frame macro lens

so for all who complained about the colors from the Laowa I shot again the waver at indirect daylight. As I told several times, but feel to be ignored, have a look what different lightning does on such wavers :shock: . Same position as earlier, 5x on Sony A7Riv, single shot: overview.jpg f2.8-3.jpg ...
by lothman
Sat Mar 09, 2024 3:39 am
Forum: Equipment Discussions
Topic: Safe objective cleaning solution -- so much conflicting info online?
Replies: 22
Views: 743

Re: Safe objective cleaning solution -- so much conflicting info online?

beside the good recommendation which were already given, I add some of my findings. cleaning solution: I mixed a big bottle of Zeiss cleaning solution and filled it in small dropper bottles. Never touch or contaminate the cleaning solution bottle {-X . Zeiss has good papers on cleaning for example: ...
by lothman
Wed Mar 06, 2024 4:57 pm
Forum: Equipment Discussions
Topic: AstrHori 25mm f/2.8 2x-5x full-frame macro lens
Replies: 52
Views: 1875

Re: AstrHori 25mm f/2.8 2x-5x full-frame macro lens

lothman wrote:
Mon Mar 04, 2024 6:00 am
at 2.5x the Laowa outresolves the 60Mp Sony sensor what I showed here with pixelshift images. But at 5x pixelshift did no longer show more resolution.
just realised my link to an earlier test of the Laowa was wrong
viewtopic.php?f=27&t=43097
by lothman
Wed Mar 06, 2024 5:24 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Galanthus
Replies: 12
Views: 363

Re: Galanthus

FotoChris wrote:
Tue Mar 05, 2024 1:16 pm
... I'm just wondering whether I could reduce the size of the setup, take the lens from a bellows to a... hm... helicoid?
with the A6000 a Laowa or Sigma macro would achieve very similar results at a much smaller (and cheaper) setup :P