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Yes, often Ricoh cameras have very good lenses and construction. Only thing is, they're often ugly... lol. I had a Ricoh Auto 66 TLR with a 3-element front-cell focusing lens. This camera is more or less Ricoh's answer to the "Rollei Magic". Well, the simple 3-element lens was very sharp once...

But how can I be a smart camper, since i don't own any Hassy?!?! Jokes aside, the Bronica ETR (si) 220 backs are also useful because, with careful use and test, they can be converted into 120 backs that allow 16 exposures per roll instead of the regular 15 exposures per roll afforded by the...

Yep, me too. I have Portra 400NC, 400VC, and Reala in 220 format.

Most likely, they just buy 65mm movie film, slit it, and convert it to 120 or 220.

I never suggested such a thing. This is a non-sequitur fallacy.

Yes... Just for clarification there are four lenses in this focal range, in chronological order: 1. Zenzanon MC 105 3.5 2. Zenzanon E 100mm f4 (Macro) 3. Zenzanon PE 100mm f4 (Macro, optically the same as the former) 4. Zenzanon PE 105mm f4.5 (True macro)

I would have expected a better comment from you.

There is a misunderstanding. I never mentioned scanning for digital projection of b&w slides... Which, in my opinion, would be a silly thing to do, and I would guess we both think the same about digital projection.

Not so uncommon, really, for example the 135/4 Macro for the Pentax 6x7 uses the same design. As well as almost all the 100-105/4 macro lenses for 35mm cameras.

And also because of physical constraints on the shutter opening size and the rear throat opening size (which was enlarged on the RZ67 to allow faster lenses)

That was something I was going to ask. Peracetic acid takes time to be formed. So a freshly-made mixture of H2O2 and acetic acid will have little actual peracetic acid in there. There's another thread here discussing this. It seems you need to wait until the peracetic is formed. How much, I...

This is awesome! My two cents: Note LEDs seldom have good color rendering. IMO you could try using good old tungsten (i.e. halogen) light sources for best color, they have a continuous spectrum. As for the blue, orange, magenta... i wonder if there could be some kind of digital correction to...

Oh... so now I understand why Bronica never offered such a thing. They were very conservative with their lenses and wouldn't dare to release a lens that was daring in its angle of view, yet with other problems. Yes, i can see the distortion in your pics, the 40/4 Zenzanon lenses (MC silver ring...

Another "aha!" moment. Fomapan 200 is supposedly T-grain and indeed it has a cracking emulsion problem. There's so much wisdom to be gained by re-reading the posts of Rowland Mowrey!!!

Aha! So this is part of the reason a film like Vision 500T can be marketed as 800T once the remjet is removed and processed in C41... Thanks PE {RIP dear sir}

That's great! This should be one of the best performing lenses for the RB system. It uses the same optical structure than the Mamiya-Sekor 80/2.8 lens for the TLR cameras, which has a very good reputation.

Yes, but this is because you intend to project slides and you want to expand the dynamic range as much as possible. However if the slides are to be scanned, this is not a requisite, and in fact perhaps the dynamic range should be reduce to better match the scanner's capability. Slides for...

OMG ... so many?!?! let me guess, how could one have an extreme amount of steps... 1. pre-wash to condition the gelatin 2. first developer step A 3. first developer step B (that is, a two-step developer) 4. stop bath 5. some preparing bath before bleach 6. bleach 7. clearing the bleach (maybe...

You're doing God's work, Ivo.

For Italians, Adequate Technology And in german: Fehler in allen Teilen (failure in all parts)

Check out the elements for haze. That lens tends to suffer from haze developed within the lens groups. (There are 3 lens groups, two of them are cemented, and they can get hazy.)

If we want to get nit-picky, then MTF is neither resolving power nor contrast. It is, precisely, modulation at a certain frequency. I don't care what Nikon marketing writes there. What I said is that MTF at low frequencies will give higher perceived sharpness and this is something that's...

Wow, i didn't know such a lens existed. It's giving me a bit of envy. On the Bronica ETR we only have the 40/4 wideangles (which OTOH are very good -- and front element is only 62mm) and the 30mm fisheye, which is really really expensive.

Do you like that focal length? I never liked my 127/3.8; i only liked the compact size.

Sharpness is a real (measurable) thing if we're talking about MTF. High MTF = high perceived sharpness, even more so at low frequencies. Total (system) MTF is a result of multiplying the MTF of the lens + the MTF of the film. And MTF is limited by the film stock on 135 (and smaller) formats...

Ok, since you are caring for image quality. Consider that 120 film has a bigger cost -- due to less exposures per roll. I have bothered with many folder cameras (the agfas, the zeiss ones with novars, ensign selfix 820, zenobia, and others) and none of them, except one(*), had enough...

Only four. And i suspect the film flatness on the Mamiya Six being not optimal due to the movable film plane. Source: I own one.

Many lenses, specific models, tend to develop haze due to inherent problems with some materials, interaction between lens cement and lens coating, etc. That's why for those lenses you'll find almost all of them have haze.

Most likely cells will just fit in. However, the 50/2 lens is matched to the exact width of the shutter (which has sample variation). And of course front cell is matched to back cell, that's why they have serial numbers. So your best bet is to repair/replace the rangefinder on the camera that...

Replying here to be useful for people who is using the "search" function. I own this lens, as well as other zenzanon. It's an excellent lens with no apparent flaws. However, it's substantially bigger and heavier than the typical 75/2.8 lenses (any version). Bokeh is superb, as well. There are...