markus_keinath1

<p>I am 3 months too late, but I have converted my Canon FD 300/2.8 L last month to Canon EF mount (with infinity and manual iris operation).<br />At the moment I have only a german webpage for that modification:<br /><a href="http://www.4photos.de/camera-diy/Canon-FD300-2.8-EF-Umbau.html">http://www.4photos.de/camera-diy/Canon-FD300-2.8-EF-Umbau.html</a><br />A Canon FD 100 f4.0 Macro I have modified to EOS too, but for that I have no webpage yet.<br>

Both lenses are not very simple to adapt: The lincage between aperture ring and iris needs a DIY part to work. A mirror lens without an iris to operate should be easier to modify.</p>

<p>Some like the modern camera interiors more that the old, some don't.<br>

For repair I like the older mechanic cameras more - those I could understand. For creation of gadgets (bellows etc) I am happy with the Canon EF bajonett and electronic cummunications.<br /> <br /> £10 for a working T90 sounds good!</p>

<p>With a relay lense and probably a screen (nearly?) all format adaptions could be made.<br>

For example 35mm lenses could be adapted to normal video cameras:<br /> http://www.redrockmicro.com/lensadapter/index.html<br /> For that a screen is needed. This is vibrating or rotating to make the structure of the screen not visible.<br>

Currently I do a little testing on the adaption of a C-Mount lens to a Canon DSLR. The C-Mount Video lens is in front of a macro lens. The macro lens relays the small image of the video lens on the much bigger chip of the DSLR camera.<br>

The problem with this is the quality, cost and length. My combination has ~ 50 cm length!<br /> The image quality of most video lenses is for VGA suitable. Some C-Mount lenses are designed for 1 Megapixel, some for more. Even for 5 Megapixel - but these are mostly not wide angled - or they are not cheap.</p>

<p>In this old thread the problem is mentioned, that one can use only an IR-filter or the normal filter inside the camera. So the decision is, if a camera only for IR work will be ok.<br /> And if one decide to do that modification, the next answer is, which filter is to use.<br>

I had the same thoughts, and got a solution:<br /> In my Canon (I know it is a Pentax thread) EOS 350D / Digital Rebel XT I have enough room in front of the shutter to place the filter with ~ 2 mm thickness there. And so I could change the filter in just 2 minutes. The main problem is dust - but for me it is the possibility to change the filter more valuable that dust free pictures.<br>

Up to now I have the following filters modified:<br /> B&W 093<br /> Hoya R72<br /> UV-Filter<br /> Grey Filter factor 1000<br /> Original Canon IR-Cut filter (with some problems)<br>

Here are the first DIY instructions for this work:<br /> http://4photos.de/camera-diy/exchangeable-filter-dslr.html</p>

Hello!

On my web Site I has some (~80) links to LF DIY:

http://www.keinaths-fotohomepage.gmxhome.de/LF/lf-links.htm

Markus