murrayatuptowngallery

Hello:

I am making my own ground glass - thus far a piece large enough to

verify rangefinder adjustment on an old Argus C-3 Matchmatic.

On to 4 x 5, 5 x 7 and 8 x 10. I have filmholders for these formats.

If I make the glass the dimensions of the filmholder, I know it will

fit the back of whatever camera I build (not there yet). I am

thinking shims to space gg properly.

Is ground glass actually sized smaller to fit a 'holder' for safer

handling on manufactured cameras?

Thanks

Murray

Just for completeness in case anyone reading this can use the info

7301 and 7261. Spring return 25#.

Murray

Tripods.com - I never would have thought of that! I looked and there are some things that look like mine with expanded numbers of similar form. 7301 Tripod, 7261 head.

Looks like a 25# rated one. Puny by their standards - they have one that'll handle 400#!

Thanks. It was saved from the dumpster at work...they got a digital camera.

Murray

Hello:

I have confused the tripod and head numbers, but I acquired a Samson

Quick-Set large tripod (I will add the number when I get home - I

think 7301 and 7261).

In the meanwhile, I am wondering where I might find out

the 'capacity' or specs for Samson Quick-Set tripods - weight, wind-

loading (just kidding), however it was 'rated'.

Thank you

Murray

Thanks replies -haha- that's me -

I did not like the results I got with 35 mm pinhole so I thought I might be happier with LF.

Someday I'll try.

Murray

Hello:

Has anyone successfully used the Zone System with pinhole photos?

I will be probably using film instead of paper for my negatives.

Thanks

Murray

Hello:

Anyone have any knowledge of coverage or any other info on an Ilex

Process Paragon 360 mm f/9 lens?

Thanks

Murray

Thank you for encouraging news.

Murray

Hello:

I picked up some out-of-date 8x10 Ektachrome 100 Plus that has been

photo store refrigerator kept - expired 8/99.

I'm not real concerned about color shift - it was cheap enough to

experiment with. I have some 8x10 filmholders an Ilex Process Paragon

360/f9 and a holey bellows I might patch up - or maybe just make a

foamcore box. Or maybe pinhole.

What kind of disastrous shifts might I expect due to the age, and how

relatively costly is it to get enlarged prints from? (Assuming I take

anything that merits keeping).

I don't know what to expect from this adventure.

Thanks

Murray

Hello:

What process has to be gone thru to get color prints from Ektachrome

EPP100 8x10 color reversal film.

What IS color reversal film? Is it like slide film, or a negative

transparency? I guess what I'm getting at is - does the 'reversal'

name suggest it's simpler to get a positive print from this than from

conventional slide film?

Thanks

Murray

Hello:

Thank you all for previous questions answered...I've been wandering

around elsewhere and forgot about this group!

I was just given a pair of Honeywell Slave Strobonar 200 flashes with

tabletop stands.

They have a circular flashtube with an apparently incandescent 25 W

125 V lamp in the center. There is a black knob with an arrow that

lifts up to expose a clear plastic tube.

I will guess that allows the 'master?' flash to optically couple to

the slave flash and the arrow indicates there must be some

directionality to this coupling.

Then there is an electrical connector that looks like a typical

camera flash connection.

There is an on/off switch in the power cord.

I will further guess/hope that the incandescent lamp is for 'aiming'

the flash, perhaps to pre-check for hot spots etc.

Can anyone tell me anything more about these...I have no manual and

have actually never used either of the two 'normal' flashes I bought

for 35 mm.

I am not however, afraid of a technical answer...the more the better

so I can tell if I can use these for something.

I can measure the voltage at the connector to learn if this is

a 'high voltage' one that could 'fry' an electronic camera interface,

but haven't yet.

Thank you

Murray

Hello:

<p>

Although people say silver gelatin is just a fancy term for b/w photo, what do you call the processes where people apply an emulsion with a brush to other substrates, like perhaps watercolor paper?

<p>

Someone recently showed me some 4 x 5 palladium prints, and I didn't think to ask whether that was a printing technique used with conventional negatives, or if it was a paper negative type of process - used as film in a camera.

<p>

For very large format (11 x14 and larger), are there any economical processes to hand apply silver-based chemistry to paper?

<p>

I have a large pinhole application in mind (18" x 24" bellows) and perhaps might try a simple homebrew lens with it someday.

<p>

Newspaper film is one option I'm considering (14" x 25").

<p>

Thanks

<p>

Murray

Not sure if I already asked this here...

<p>

I bought some Kodak 3404 Aerocon II aerial film on eBay. I intend to cut it into 4 x 5 and 5 x 7 sheets (inches) for pinhole work.

<p>

There is some data available for using HC-110 in rewind processing, but it's still oriented toward 125-250' long rolls and multiple cycle processing.

<p>

Any advise on developing small quantities (1-4 sheets at a time) with tray, tank or tube? (HC-110 or Rodinal, or whatever? Versamet chemistry is normally used, but don't know where to get it and it's not shipping-friendly anyway)?

<p>

Thank you

<p>

Murray

Hello:

<p>

I just found this group and hope my questions haven't been asked 400 times already, because I know it can get old answering the same question that was asked a week earlier.

<p>

1) Any idea how to make homemade BTZS tubes? It seems simple, but I'm sure someone else has worked the bugs out already.

<p>

2) I'm planning experiments with a 18 x 23 bellows for pinhole work for starters, maybe a lens someday, too, with as large a sheet of film as I can find - I've spoken with local newspaper, and while they haven't told me what brand they use, they mentioned Kodak Rapid Access developer. Is this a commonly available product, and if anyone has experience using 'newspaper' or graphic arts film, any comments on film performance and alternate developer?

<p>

Thanks

<p>

Murray