Well I got the photos back from the shop today - I was able to take 4 shots out of a possible 5 before the film jammed so had enough data to make a determination on the near focus of the camera.
I used f/calc from tangent software to determine the theoretical depth of field for a camera with a 400mm lens - 15 inch focal length is not quite 400 but that was all I could use for an input.
With the camera set to a far focus of infinity @ f5.6 the near focus was 310'
@ f8 it was 250'
@ f11 it was 210'
@ f16 it was 170'
@ f22 it was 125'
@ f32 it was 100'
The photos confirmed the above calculations.
I had an out of focus pole about 100' from the camera and the bow of a boat was about 200'( hard to tell regarding focus) - with in focus and sharp lettering on the bridge of the boat that would be at about 230'.
I shot the above @ 1/400 - F11 using Fuji Pro400H - 400ASA - using my Pentax Spotmatic as my basic light meter to give me F11 @ 1/500.
I used 1/400 sec as I was hand holding and the shot might have come out a bit clearer if I had rested the camera on a monopod.
I was shooting with a far bank at about 1/2 mile - I could see individual rocks on the beach and small branches were very visible so the camera is performing the way it was designed.
Now I gotta get some 7 inch film and try that!!!!
Chuck
Hey ChuckJack
I fabricated up a small pocket using cardboard and Red Greens' duct tape. This allowed me to place a spool of 120 film in a small area so it wouldn't migrate and would hopefully unwind in a behaved manner.:confused:
In the dark I wound the leader on the middle of the 7 inch film spool - draped the film accross the glass plate and into the cobbled up pocket. Put on the lid and made sure the camera was not turned sideways so that the film would stay in alignment.
I managed to get 3 shots that were full length (vertical) so ended up with a 2 1/4 inch by 5 inch negative. The film jammed on the last one - looked like the leader and film were pulled through at different rates as there was a bump in the film where the end was attached to the leader. If I was to do it again I would try it with some 220 film as it does not have the continuous paper backing - just the leader and trailer.
I guess that gives me a 6 x 12 cm (vertical format) - extremely large and heavy - point and shoot - roll film camera. If anyone gives me any hassle I can bean them with the camera - makes a pretty formidable weapon!!!
I am on the hunt for some film that won't cost an arm and a leg - lost those in the last fuel fillup in my Dodge pickup truck!!! - wife is grumpy 'cause I got too many toys - gotta be careful what I put on the plastic. She thinks I have gone off the deep end - going back to film and buying those old junk cameras, but it is still a small price to pay for a hobby - at least I'm not spending it all in the bar!!!!!:rolleyes:
Regards,
Chuck
Here is the photo that I took - loaded it into flkr.
http://farm1.static.flickr.com/128/330487502_4d87d612d7_o.jpg
This was scanned from the proof rather than from the negative so the quality is much less than it actually is.
I have found a couple of interesting places that have film that would work - and I am thinking about using some cirkut film - 8 inch cut down to 7 inch.
Unfortunately I am going to be away for the rest of the month - I am a maintenance trainer for an airline on the west coast and will be instructing for the next 3 or so weeks.
Jack - if you get a chance to post some shots of your camera and the bag-mag I would appreciate it - I looked at mine and I don't see an easy way to remove the glass - is it possible that we have different models of the same camera - or that yours has been modified?? - I will try to get a couple of shots of my camera and post them this weekend.
Thanks for all the input everyone!!!
Chuck
Hi Chuck,
I'm posting some rather poor shots or the back of the camera with the bag mag in place after removal of the ground glass. There is an aluminum bar that holds the glass along one long edge and I had to resort to using a a large screw driver against the short edge. I tapped the screwdriver with a light hammer to get the bar to move out of the way. Not a precision solution I admit. The bar seems to be held in place by some sort of half moon fasteners that may reguire a special tool to loosen.
Hope you can follow this.
Jack
Oh, if you want a Houston Fearless roll fim processor (handles 70mm to 9-1/2" widths) PM me if you have a truck and can pick up in California!
Oh, if you want a Houston Fearless roll fim processor (handles 70mm to 9-1/2" widths) PM me if you have a truck and can pick up in California!
Its on a pallet. A pick up truck will do nicely(if I could figure a way to lift it up to the bed!):confused:
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