Showing posts with label C-mount to micro 4/3. Show all posts
Showing posts with label C-mount to micro 4/3. Show all posts

Thursday, September 22, 2011

This is the drill for my 15,- Pentax 6mm 1.2

THE DREMEL: IF THIS DOESN'T WORK, NOTHING WILL...
I cannot get my Pentax 6mm 1.2 c-mount lens to focus on my Panasonic GH2. I am stuck with a fixed focus lens while others have been able to shoot good stuff with this wide-angle, fast lens I bought for €15,-
I am going to give this lens one last shot and bought a Dremel (mini-drill) that will help me modify my lens even further. I have instructions from people that have been succesful at getting infinity focus with comparable lenses... Either I'm going to shoot some lowlight, wide angle stuff pretty soon or I'll be stuck with a handfull of scrapmetal...

PRECISE INSTRUCTIONS FOR MODIFICATION

Saturday, May 14, 2011

Cheap lens adapters


It should be fairly simple: you have a prime lens and you need an adapter to attach it to your digital camera. I don't need autofocus, electronic aperture control. Just a simple piece of metal to connect an old lens to a new camera. Well, nothing is simple...
I bought a few of these cheap adapters and never thought that they weren't 100% functional. Either they fit or they don't, I thought, rather simplistically. It turns out there's more to it than just that. The bad ones do not support infinity focus. I guess I have those.
I thought my Pentax 6mm wouldn't focus on infinity because the rear barrel needed more modification. I shaved it off so far I almost ruined the thing. But now I suspect it's probably the cheap lens adapter.... I ordered one double the price and see if that solves my problem! I'll keep you posted.

Friday, April 22, 2011

Mailbox: television lens, Cosmicar 25mm 1.4


I'm going a little nuts with the lens business. A buying frenzy has taken possesion of me but I promise this is the last one in this series of C-mount 16mm lenses. (there's just 2 more coming from the States- a birthday present from my wife! although she doens't know it yet...)
This Cosmicar-for-Bolex lens is a 25mm 1.4 version and in absolute pristine condition. It produces this wild, swirly bokeh. Can't wait to shoot video with it on my GH2.

Tuesday, March 29, 2011

Mailbox: close, but no cigar


So I got myself a Pentax 6mm f1.2 for 14,99 and I'm dying to mount this thing on my Panasonic GH2. Today I got one step closer but there's about one millimeter between me and happiness. One millimeter of metal.

My C-mount to micro 4/3 adapter arrived and it's another ring like they've been showing up regularly here lately. There is a guy who does reviews of adapter rings but the only thing I can say is that it's black metal and fits my camera. But it doesn't fit my Pentax CCTV lens and that's not the adaper's fault. There is something unusual about the design of this lens and so you must modify it.