Ruben Arce

No problem. In my experience all M42 lenses have worked great, but I definitely recommend using prime lenses. Zoom lenses from that time period were not what they are today, they are soft, but yes I used several lenses with my K3 and I have never had any issues.

You can use pretty much any M42 lens on the K3 without problems. I don't know where that guy got that info, specially when it's almost impossible to get factory details or service manuals for the K3s. The focal flange distance of the M42 mount is 45.46 mm VS the 45.50 that you are talking about that's a .04mm or 4 hundredths of a millimeter. Technicians consider +-.02 the tolerance for a correctly calibrated mount, so as you can see it doesn't make much sense. Now when technicians set the FFD of a camera mount, meaning the body not the lens they subtract .02 or .03 to the original FFD so the i

Adjusting or calibrating the nozzle to the bed and cleaning the bed with alcohol helps a lot. I use hair spray after cleaning and calibrating the bed and prints stick to the bed really well. I just use the basic hair spray from the dollar store, it works like a charm. Also started getting much better result when I changed the bed heating temperature to 55 instead of 60° and the fan speed to 60% instead of 100% I print stuff at speed of 25-35 and that has helped me me to pretty much eliminate warping. I'm going to be out of town a couple of weeks, but I'll print the small tank soon.

I have the Ender 3 and I have a 0.3mm nozzle mounted on it now. I'm going to use that one to print the spiral, so I can get better detail and minimize scratches on the film. I'll report later, since just the spiral it's going to take 14 hours to print, but I'll give it a try for sure.

Wow! That's a super cool design and you are just sharing it. I don't have a printer that big, but this will make some people happy for sure.

I'm glad to inform I just removed the batteries on the 3 cameras that I own and there was no leaking or damage at all. I guess I'm lucky. Thanks for sharing those pictures, more cameras can be saved now that people know how they look like.

Looks great. It's not easy to print with a .2mm tip, but looks like that's what helped you to get that great quality. I'm going to give it a try with my Ender 3, It won't fit, but I'd be happy processing 10 or 20 feet of B&W once in a while. Thanks for sharing Sam.

Thanks a lot for the pictures guys. My cameras work so, I hope I can remove the batteries and save them. It would've been difficult to find those batteries without knowing exactly how they look, so thanks again.

Could you guys share a pic pointing where the battery that leaks is located in the CP-16r? I have more than one camera and they work just fine, but I'd like to make sure the battery is not leaking and I may remove it to avoid damage.

Rokinon Xeen lenses have a PL mount, so they would work on a LTR-7 if it has a PL mount. I was talking about lenses like the Rokinon DS with a Nikon or Canon FD mount and an adapter on a camera with an Aaton mount.

No problem Laurie.

You can use lenses with Nikon F mount with that adapter without problems, meaning original Nikkor lenses, Samyang or Rokinon. The focal flange distance shouldn't be a problem, meaning the lenses should work just fine including focusing to infinity if the adapter is at the exact distance from the film plane, which is not going to be the case for sure unless you ask a camera technician to do it for you and you don't remove the adapter. Lenses designed to work with 35mm still photography cameras work fine in my opinion, as other pointed in your other post you are using the best part of the len

Yes, it does. It’s bigger and heavier than the most common one, but fully orientable. There is even an extension tube for it. I wish I had that one.

There is an orientable viewfinder for the CP-16R, it actually works with the NPR as well.

I think you should watch this video, you are confused and explaining at that extent would take a long time. There are some other very good videos on YouTube that may give you some more info so you can ask more concrete questions if you still have them.