Search found 5939 matches
- Thu Mar 28, 2024 12:52 pm
- Forum: Nature Photography -- Macro and Close-up
- Topic: Rio Bigal Reserve: Ecuador II
- Replies: 3
- Views: 42
Re: Rio Bigal Reserve: Ecuador II
Wonderful evocative pictures, as always. The feeding leech is especially remarkable! I've never seen that.
- Thu Mar 28, 2024 8:59 am
- Forum: Equipment Discussions
- Topic: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
- Replies: 72
- Views: 3432
Re: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
You probably know this, but be aware that optimization is not a simple process. The 85MV (and I presume also the FL0530) changes focal length as the CAS ring is adjusted. Thus if you simply adjust for maximum sharpness, you may just be optimizing critical focus. You need to perform something simila...
- Thu Mar 28, 2024 5:07 am
- Forum: Equipment Discussions
- Topic: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
- Replies: 72
- Views: 3432
Re: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
my approach is to set up the subject and adjust the ring by eye at 100% live on the camera for maximum sharpness (actually I use a display monitor) without regard to the magnification scale. That is also my approach, and the recommended approach for medium format photographic lenses with floating e...
- Wed Mar 27, 2024 8:02 pm
- Forum: Equipment Discussions
- Topic: Raynox DCR-5320 as tube lens - experiences and comparisons?
- Replies: 3
- Views: 185
Re: Raynox DCR-5320 as tube lens - experiences and comparisons?
I have made those comparisons shorty after Nathan published his tests on this forum, but it may take me a while to search for them on my old hard drives...currently for full frame my favorite 200mm tube lens is the Mamiya 200mm Apo for 6x4.5 and my favorite 250mm tube lens for FF is the Mamiya 250m...
- Wed Mar 27, 2024 1:27 pm
- Forum: Equipment Discussions
- Topic: Raynox DCR-5320 as tube lens - experiences and comparisons?
- Replies: 3
- Views: 185
Re: Raynox DCR-5320 as tube lens - experiences and comparisons?
I have made those comparisons shorty after Nathan published his tests on this forum, but it may take me a while to search for them on my old hard drives...currently for full frame my favorite 200mm tube lens is the Mamiya 200mm Apo for 6x4.5 and my favorite 250mm tube lens for FF is the Mamiya 250mm...
- Sat Mar 23, 2024 5:24 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Loss of Robert OToole
- Replies: 28
- Views: 796
Re: Loss of Robert OToole
Oh noooooo.....this is heartbreaking news. He was such a generous and thoughtful person, and devoted a huge amount of time to us on this forum. He was always open-minded and deeply interested in new photographic techniques. Besides doing the best macro tests on the internet, he was himself a very ar...
- Fri Mar 22, 2024 5:18 pm
- Forum: Equipment Discussions
- Topic: Lens recomendation for film reproduction
- Replies: 51
- Views: 1084
Re: Lens recomendation for film reproduction
"Absolutely, macro lens set at minimal extension, i,e. Infinity focus when mounted on the bellows which also at minimal extension. Thank You Rik for suggesting the correct term “infinity focus” …." Yes, and that is the reason I made my comments about floating elements being out of place. The results...
- Fri Mar 22, 2024 9:59 am
- Forum: Equipment Discussions
- Topic: Lens recomendation for film reproduction
- Replies: 51
- Views: 1084
Re: Lens recomendation for film reproduction
I will consider you suggestion of using medium format bellows with reverse mounting of macro lens. Actually I was suggesting the medium or large format bellows with the lens mounted inside it IN THE FORWARD DIRECTION, not reversed, with the bellows extension set to maintain the correct flange-to-se...
- Thu Mar 21, 2024 9:17 pm
- Forum: Equipment Discussions
- Topic: Lens recomendation for film reproduction
- Replies: 51
- Views: 1084
Re: Lens recomendation for film reproduction
Using repurposed Nikon Multiphot base for slide copying with Nikon Z6II attached to Nikon bellows PB-4, Micro Nikkor 60 mm 2.8 (got this at KEH @ $140) and flat LED light source (Apurture Amaran at 6000 k). Both slide holder and macro lens hood 3D printed. The setup yielded very good quality digita...
- Thu Mar 21, 2024 3:05 pm
- Forum: Equipment Discussions
- Topic: Lens recomendation for film reproduction
- Replies: 51
- Views: 1084
Re: Lens recomendation for film reproduction
I was hoping that Sigma had their 50mm 1:1 macro in a M42 version but it seems this never happened Well, Sigma got 55mm macro lens with M42 mount - old (XQ line), somewhat rare, nothing special optically. Any special need requiring M42? For something cheap and shareable with other people I would go...
- Thu Mar 21, 2024 2:55 pm
- Forum: Equipment Discussions
- Topic: State of high CRI COB lights in 2024? Current recs?
- Replies: 4
- Views: 252
Re: State of high CRI COB lights in 2024? Current recs?
One drawback of LEDs that I have been noticing is banding at high shutter speeds (1/500 and faster).
- Tue Mar 19, 2024 4:16 pm
- Forum: Equipment Discussions
- Topic: Lens recomendation for film reproduction
- Replies: 51
- Views: 1084
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 ar...
- Sun Mar 17, 2024 4:04 pm
- Forum: Nature Photography -- Macro and Close-up
- Topic: Rio Bigal Reserve: Ecuador
- Replies: 11
- Views: 318
Re: Rio Bigal Reserve: Ecuador
Beautiful pictures, and it is good to see you posting again! Any idea of the species of Pristimantis being eaten by the tarantula?
- Sat Mar 16, 2024 4:25 pm
- Forum: Equipment Discussions
- Topic: Is the era of Nikon 10x CF 0.3NA / 20x 0.46NA not-so-great for APSC? Also curious about 100x 0.95 or other high-na?
- Replies: 4
- Views: 244
Re: Is the era of Nikon 10x CF 0.3NA / 20x 0.46NA not-so-great for APSC? Also curious about 100x 0.95 or other high-na?
Havent read it all yet but these nikon CF infinity objectives were paired with eyepieces with a field number up to 26.5mm so aps-c is barely out of their nominal spec. Even though the cfi60 line has taken over as Nikon's main system some of these 45mm infinity cf objectives are actually still made ...
- Sat Mar 16, 2024 4:21 pm
- Forum: Equipment Discussions
- Topic: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
- Replies: 72
- Views: 3432
Re: MEJIRO GENOSSEN FL0530 4.0/110 FLOAT LENS TEST IS FINALLY ONLINE
You can always use a real view camera with your lens and camera. Far greater freedom for everything: big tilts, huge shifts, gigantic extensions if needed.