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Hi guys,
I used a
roll of E200 with a Tak FSQ-106 and a 67 Pentax. It worked well with the gas
being put into the body of the scope. I replaced one of the screws used to hold
the finder scope with a customised hollow one and flowed the gas through it. It
worked very well and I didn't have to alter the Tak in any permanent
way.
Later that night I decided to do a couple of wide
field shots with my 105 f2.8 lens. I hadn't at that time drilled a hole in the
camera body and the results without gas were terrible. The film took on an ugly
green cast and the contrast was greatly reduced too. With the gas it was
beautiful - the colour is what I have expected from E200 but without it was
hopeless.
I have since put a hole in the camera's rear
accessory hole and it flows very well. I found I could confirm the
performance of the hole by purging the camera with refrigerant gas (non ozone
depleting of course). With the lens off the body lay it on it's back, allow the
gas to flow, wait a about 20 seconds and tilt the camera upright. If you have
gas in the body, you can see it falling out if the front hole by looking into
the distance with your line of sight passing through the area at the front
of the camera. The gas is heavier than air and looks much heat shimmers so
its easy to see when it comes out.
As a result I found I only need a tiny hole
to get the gas into the camera and I certainly only needed to drill
beyond the base plate.
Regards
Monte
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