26 Oct
2012
26 Oct
'12
7:23 p.m.
At 9:13 PM +0100 10/26/12, Tony Duell wrote:
I plan to.
BTW, you might find this design interesting. I found it last night
while seeing if there was anything online for the C64. I find myself
tempted by this design, I have several Apple //e's and a couple
//gs's (for this the //c's don't count). I like his dual input
solution, though it's targeted to 35mm cameras.
http://www.willegal.net/photo/repair/besttester.htm
Fortunately the DeVere system is quite modular, the
timer plugs into the
votlage stabiiser, and one of the first things I did when I got the
enlarger was to trace out schematics. So I can make a digital timer to
plug into the smae socket if I want to.
I've never seen a DeVere in the flesh, and I've only seen a couple
photo's. You got me curious, so I looked them up, and it appears
that it is a British company, which would explain why the only ones I
seem to hear about over here are 8x10 enlargers. Their 504DS 17
MegaPixel digital enlarger sounds interesting.
I have a Beseler 4x5 and a 23C. The 23C has the older colour head,
but has a more modern one that doesn't require the filters that
appears to be new in the box. I plan to see about getting it setup
for doing quick 5x7 35mm prints, I just need a Negatrans holder that
will fit in it. That way I can focus and forget.
THere are at lest 6 books. Two of them are
brand-specifc -- Leica and
Nikon (note the latterc covers the S series ragefinder camers, the reflex
cameras and the Nikonos). The otehr 4 books are more general. Camera
Maintenance and Repair VOlumes 1 and 2 have gneral repair tips, methods
and how to make test instruments in the first half of the book and then
Which volume has the C64 shutter tester? I was wondering if I needed
to get the original single volume, or the newer Vol. 1 or 2, in order
to get that design and source code. I tried googling for that info
with little success.
some details on taking apart 'representative'
models. Restoring Classic
and Collectable coamers covers pre-war camers, how to mke bellows, tc.
Repairing the Great Collectable Camers is post-war models and covers some
very interesting designs.
The "Classic and Collectable sounds the most useful for me. I have a
Nikon S that needs work, but plan to let a professional fix the
timing on it. While it's not the original body, I have my
Grandfathers three lenses (35/50/135), and his accessories.
I need to find a scan of a book online I ran across recently... Ah,
I was smart and saved the link to the site, and here is the book.
You might find it of interest, if you have a way of viewing it. It
was done in 1917, and talks about all the old shutter designs.
http://cameraeccentric.com/html/info/repair_1.html
Actually you might find the whole site interesting. Lots of *OLD* doc's.
http://cameraeccentric.com/info.html
None of them, IMHO, are a substitue for the
manufacturer's service manual
-- if you cna get it. And there are plenty of thigns I would do
differently. But the books are worth reading.
Definitely, but those tend to be hard to find.
actually I
think that's a book that's already on my wish list... I
desperately need a shutter speed tester for some of my older gear.
Make one! Although there is a trap for the unwary that most comemrical
testers get erogn too. However, such a simple tester will pick up gross
probles, like a sticking
escapemet. Just don't expect the higher speeds on the shutter dial to
agree with the timer. If in doubt, take a series of photographs of the
same illuminated grey card with different speeds, adjustign the aperture
to give the same exposure each time, and compare the densities of the
negatives. That will pick up any major erors in one of the speeds.
I'm actually the most interested in slower speeds for Large Format
(4x5 and 8x10) lenses. I'm pretty sure my 8x10 shutter is decidedly
off.
Zane
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| Zane H. Healy | UNIX Systems Administrator |
| healyzh at aracnet.com | OpenVMS Enthusiast |
| | Photographer |
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