lf-photo.org.uk

Origami!

A test that I got the dimensions and geometry right for bellows. It's not as simple as it looks...

Neil

:mrgreen: I have the blackout fabric for the inside and light-proofing, and some 'Panama' red for the outside; paper stiffeners in the middle. I'm keen to see how this will work! I'll probably spray the inside of the blackout fabric black to stop diffuse reflection. I'm considering whether velcro ca...

Thanks Evan, I'm having difficulty finding nice bushes, but I have located both 1/4-20 Whitworth nuts and also 1/4-3/16 adaptors, which might be usable. I have started construction - with a wooden model to test the design before I spend on the CF. Today I bought material to make the bellows, since C...

Evan, where did you get the tripod mount nut? I'm having difficulty locating 1/4 whitworth spike nuts...

Neil

I like the look of that 6*9, Evan - though it's apparent that there are only a few ways of doing any particular job. The rear focus on the larger camera is an interesting approach that I hadn't considered, but is there a 'fine tweak' - perhaps a rotary - on the lens? My design is getting closer. I'l...

Tried it both ways, Bob - Xsane both standalone and as a front end to the Gimp. With all the autocorrects off on the scan, the range is under half the full scale; if I let Xsane do the inversion it comes out massively black crushed. The images I attached were just from the electric camera and invert...

I wondered about that - but there's very little if any detail in the shadow under the car, though there's detail in the visible tyre. The sun was in the classic 'over my shoulder' position; I'd have expected something in there. But this is supposed to be a high-silver emulsion... I'd expect much hig...

Well, this is annoying... I've just shot a dozen or so 4x5 CHS-50, mostly for testing... half developed in Germany last week in ADH49 at 1:40 (10 minutes) and half last night with ID-11 at 1:3 (17 minutes) - all have come out so underexposed I can't get a decent scan off them. For comparison, the FP...

Heh. I did...

I'd be interested to see it, Evan. I've had a long conversation today with my CF guy; some of the ideas I wanted to use can't be done, but he's suggested alternatives which should work with a slight redesign - it's the U-carrier for the front standard that's the issue. He did suggest that a complete...

It's part of my concern, Joanna. But I would assume that someone who is favouring a design like this isn't going to stick half a ton of glass in a number three shutter, if only for reasons of economy. My immediate thought is that a budget lens - probably a s/h 'auction site' purchase such as a 105 o...

A very useful tape, Bob - I may have to paint it matt black; I want to use it inside a carbon-glass-carbon (CSC) laminate lens plate for the same reason. (The CSC is light and stiff but not light-tight, which is a shame. I'm currently redesigning something very similar to the Bulldog, but with CF/CS...

Ah, yes, the venerable Mr Hasluck. I have his 'Encyclopedia of Photography' and was offered two hundred quid for it when I had it on display at IBC last September (I was invited to present a stand on Victorian 3-d technology)... Robert, I like the application of sticky tape - but if it works, go wit...

As I said - I suspect my motivations will be different from others... When I had a problem with the ECU on my car, instead of buying the (expensive!) commercial tool to interrogate it, I sniffed around until I was able to write some software that would do the job... nothing against other people's so...

Being naturally inquisitive, and not having built a camera for years, I'm doodling a design for a 4x5 field camera. The main use of this would be for landscape work, where, with all the will in the world, dragging several kilos of camera and tripod across mountain and moorland is starting to be some...