Recent content by mariozelaschi

I can confirm that what @OAPOli suggested works 100%. I created a new focusing target with a piece of plexyglass with lines engraved using a cutter and put some tape on the borders where the inner rails are, and added some frosted tape on the back so that it's easier to spot the focus lines...

I do not insist on having my factory sealed Olympus as a golden benchmark. I'm just saying that I am puzzled because with the film + plate system, even my Hexanon 50mm lens, which I've been using for years and is perfectly razor sharp in focus, appears out of focus.

@brbo Yes, I posted a photo a few posts earlier with my film + pressure plate setup to mimic the real situation as best as possible, and it ended up giving me a slightly out of focus infinity on both Olympus (the one I adjusted by matching the screw marks from before disassembly and the one that...

I decided to follow @OAPOli's suggestions exactly and started my collimator from scratch. I cut two pieces of plexyglass. On the smaller one, which rests on the inner guides, I applied a layer of frosted tape on one side and marked the tape with a focusing grid. Then I used the larger piece of...

Hi everyone, First of all, a huge thank you for all the answers, suggestions, advice, and support. This community is incredible! I've been thinking (and overthinking) about my situation, and it feels so strange that two cameras are out of focus in the exact same way and to the same degree. One...

This may be a bit funny, but I don't have a magnifying glass. Which one can I buy? Or, can I use a digital camera with a macro lens?

I tried to do that right now: I cut a piece of plexiglas so that it would lay on the outer rails, and placed the film correctly in the inner rail. I used the same tape roll method to keep the plexi plate in place on the outer rails. This means I had the exact situation of the real film, and here...

Hello everyone, I’ve moved forward with a more serious setup, but I’m encountering some unusual results that I’d like to share. First of all, the setup: Here’s the setup using my Konica T4 + 85mm f/1.8, though I later switched to an EOS 5D Mark II + 28-135mm (set at 135mm, manual focus to...

Small update, I did a more precise test and the result is much more convincing to me. I'm still not sure it's perfect, though: I used matte tape attached to the inner guides with a symbol drawn in marker and aligned the lines using the focus of my SLR, but I'm afraid there might be a slight...

Ok. I will do some tests these days and post results and photos. It might also be useful for other users: there is very little documentation on this procedure, especially from the visual point of view, which for some people is more important than words to visualize the procedure to be done.

To be sure to be orthogonal, then I will have to draw a circle with a cross in the exact middle so I will know that is centered, right? Is a 50mm a good lens to use to do so, or is it better to choose a longer focal length? Also, I am using a analog slr, would be a digital one better?

Thanks! Yesterday I've tried it using another slr with split screen and an 85 f1.8, using some tape. I can try with a piece of frosted glass and the tape to offset. Just a doubt: is it important the distance between the two cameras? I put them almost in touch with a lens hood to filter out...

How many meters do you suggest to have the subject for it to work best? Is 20 meters enough?

Ahhhhh ok!! Thanks for the hint, I will try to do that, and to use the infinity focus test to double check then!

Unfortunately I removed the lacquer while cleaning the metal because it had lots of dried up grease that I replaced. Again, worst outcome possible, but at least, lesson learned. But yes, your description is accurate, this is how it works this focus system. I tried to adjust the focus at the...