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01-23-2016, 10:18 AM   #3916
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QuoteOriginally posted by WPRESTO Quote
Could be that copying the Contax rangefinder with it's vertical travel roll-up garage door-style shutter was a mistake, as that shutter was both prone to breakdown and very expensive to repair.
I dunno...the design is definitely more complex than most horizontal-travel cloth shutters, but the most common failure is a broken ribbon*. Materials for a repair are still readily available and the replacement is sufficiently easy that most hobbyists can do it. The expense to have a tech do it is about the same as for a repair of Spotmatic shutter and much less than for a Leica.

As is well-known, the cameras (shutter and all) as well as tooling and parts inventory came into Soviet hands as war reparations at the end of WWII. It was not so much a matter of copying as continuing to use that which they had. The amazing thing is the roll-up shutter cameras stayed in production until the 1980s.


Steve

* Estimated to last about ten years of regular usage with the original silk and somewhat longer with synthetic replacements.


Last edited by stevebrot; 01-23-2016 at 10:27 AM.
01-23-2016, 10:22 AM - 1 Like   #3917
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QuoteOriginally posted by Swift1 Quote
Getting ready to load some 620 Kodacolor Gold 200 (from 1996) into my 1947 Kodak Medalist II.
Woo! Hoo! I was thinking just yesterday about your Medalist and what a cool camera it is.


Steve
01-24-2016, 12:15 AM - 1 Like   #3918
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How about some lighting porn. I recently got interested in LED lighting and updated my Maglites with LEDs and the difference in light intensity and quality is worlds apart. I also started picking up a variety of native LED flashlights and can see their usefulness.




Then it occurred to me that perhaps with the appropriate LED setup that maybe I can use them to compliment my White Lightning studio lights with the advantage of portability. Having constant lighting makes it easy to setup lights without regard to sync speeds. With these LEDs, the heat levels are lower and light intensity higher. So I put together a 100watt LED powered by a Lithium battery.



You notice that when you buy a "100 watt" LED lamp that they actually say that it is a 100 watt equivalent (to incandescent bulb) and that it only actually consumes about 12 watts. I am actually using a 100 watt LED and not just an equivalent. The volume and intensity of light from it is very useful. As a reference, I metered a scene lit a 100 watt light bulb and it recommended 1/8 shutter speed. Same scene and distance with my DIY 100 watt LED and I can attain 1/320 shutter speed.
01-24-2016, 10:46 AM   #3919
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QuoteOriginally posted by LesDMess Quote
How about some lighting porn.
...
Same scene and distance with my DIY 100 watt LED and I can attain 1/320 shutter speed.
That looks useful. i noticed that with color, the LED tends to be quite blue with my lights.
B&W works quite well with LED.

I put a daylight LED bulb in my enlarger, and I am thinking I should have gone with a 40 watt (equiv) instead of the 60 watt. The blueish light decreases exposure times markedly.

01-24-2016, 12:00 PM - 1 Like   #3920
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QuoteOriginally posted by 45 Mike Quote
That looks useful. i noticed that with color, the LED tends to be quite blue with my lights.
B&W works quite well with LED.

I put a daylight LED bulb in my enlarger, and I am thinking I should have gone with a 40 watt (equiv) instead of the 60 watt. The blueish light decreases exposure times markedly.
I actually did this as part of an off-grid solar project in preparation for El Niņo so it is not dependent on house current plus I also have it wired-in to provide perimeter lighting around the house using motion sensor LEDs. Now that I have identified the appropriate solar charger and lithium battery, I will expand it's usefulness by increasing the total wattage. My initial target is to be able to provide a single house wall plug

The 100 watt LED - appropriately driven, can provide about 9000 lumens of light which is considerably brighter then my car's high beams. I am interested in trying out the 250 and 500 watt LEDs when they come down in price a bit. These LEDs are also available in various light temps.
01-24-2016, 01:07 PM   #3921
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I took some paper negative shots with my B&J 2x3 yesterday, this is my collection of 110 cameras:

The kodak is a Disney 101 Dalmatians version, with flash, and it still has film about 15 years old in it. If I had a reel, I would finish that roll and use this camera more.

This one is my Traveler 120. It uses 120 roll film with a 110mm meniscus lens, kinda cute. Works great.


And my two rangefinders. Olympus 35 RC, and Petri 7s, the Petri has a loose lens mount, and I think it is leaking light at the front.


Last night I ordered a Minolta Hi-Matic G, not a range finder, zone scale focus and auto exposure.
01-28-2016, 10:21 AM - 2 Likes   #3922
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My latest rescue case. An Ensign 220 Auto-Range. Coupled rangefinder and 6x6 or 6x4.5 frames.



Ronnie
01-28-2016, 02:24 PM   #3923
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Nice. It looks like a lefty.

01-28-2016, 02:35 PM   #3924
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I'm guessing they probably expected you to hold it sideways -- particularly if you're using it in 6x4.5 mode -- at which point it becomes a righty again.

(And now I see what the viewfinder mask looks like on them. I knew they had one, but I've never seen a picture of one with it in use.)
01-29-2016, 01:33 AM   #3925
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QuoteOriginally posted by wtlwdwgn Quote
Nice. It looks like a lefty.
Yes it's left hand release and wind on.

QuoteOriginally posted by g026r Quote
I'm guessing they probably expected you to hold it sideways -- particularly if you're using it in 6x4.5 mode -- at which point it becomes a righty again.

(And now I see what the viewfinder mask looks like on them. I knew they had one, but I've never seen a picture of one with it in use.)
With the wee leg out for "vertical" use the release and wind on are still on the left hand side. The viewfinder mask just slides across using a wee tab which also stops it sliding into the body.

Ronnie
01-30-2016, 08:23 PM   #3926
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QuoteQuote:
The kodak is a Disney 101 Dalmatians version, with flash, and it still has film about 15 years old in it. If I had a reel, I would finish that roll and use this camera more.
110 film is available again... http://shop.lomography.com/en/films/110-film
01-30-2016, 09:31 PM   #3927
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And I gave away my Pentax 110 system a couple of years ago.
01-30-2016, 10:53 PM   #3928
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QuoteOriginally posted by robthebloke Quote
110 film is available again... http://shop.lomography.com/en/films/110-film
Yep, I see the film is available, I just don't have an inexpensive developing option. I don't have a processing reel to fit 110 size film, and I am not going to pay a lab to do it.

I did see a DIY reel someone cobbled together from a Paterson 135/120 reel, but I'm not willing to destroy one of my three reels just to do 110. Maybe someday i will buy another reel and try the DIY trick.

---------- Post added 01-30-16 at 21:58 ----------

QuoteOriginally posted by ronnies Quote
My latest rescue case. An Ensign 220 Auto-Range. Coupled rangefinder and 6x6 or 6x4.5 frames.
Ronnie
I sure do like my Zenobia 645, it's a scale focus, but I have several of the scale focus cameras, and I am quite used to guesstimating and using DOF for clean shots.

The left finger shutter is somewhat goofy to use, but I am used to that also.
01-31-2016, 06:54 AM - 1 Like   #3929
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The Yankee Clipper plastic developing tank has a reel that adjusts from 110 to 120 film sizes, and costs under $20. I used one decades ago for 110 and other sizes, before I switched to stainless.
01-31-2016, 02:34 PM - 2 Likes   #3930
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I have recently managed to buy a K200/2.5 to add to my slowly growing collection of K series lenses. What a beast, but beautiful. Thanks Karl!


SMC Pentax 'K' 200mm f/2.5 lens on a Pentax K2DMD par Kris Lockyear, on ipernity
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