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Old 04-07-2008, 07:53 PM   #15
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Quote:
Originally Posted by Royce
Oh, as as to the spot meter. I have no excuse other than it helps in low light conditions and saves on bracketing with that pricy 4X5 film.
Hi Royce,

4x5 huh? Now you are down to 1 of 2. I still have a Yashicamat 2¼x2¼ twin lens reflex. I got it at the State of Arkansas’ used equipment sales office back in the early ’90s. They had a big meat box full of them. I picked through the box and picked the best camera and the best case. I have an original leather case without a single scratch. Same for the camera. The thread in the stitching is rotten, though.

I do recall that a sort of mentor, the local studio photographer had an 11x14 camera and a 4’ diameter gas fired print drier.
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Old 04-07-2008, 09:45 PM   #16
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A question was asked regarding the power usage. Here is what I am able to observe with limited test equipment. With volt meter attached, the old fixture would drop the battery voltage 0.5 volts and it would not recover completely when you turned off the light, the new fixture drops the voltage 0.01 volts and it recovers instantly when you turn off the light. How much better? I am sure there are better ways to measuer power consumption but this is something to go on.

Oh, as as to the spot meter. I have no excuse other than it helps in low light conditions and saves on bracketing with that pricy 4X5 film.
That is an incrdedible power savings! I had no idea LEDs were that much more efficient. Beautiful design. Stupid question: do they require a separate power supply or will the trailer's 12v power them OK? (I'm electrically challenged..) This is a real boondocker's dream come true..
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Old 04-07-2008, 09:55 PM   #17
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Originally Posted by fotochop
That is an incrdedible power savings! I had no idea LEDs were that much more efficient. Beautiful design. Stupid question: do they require a separate power supply or will the trailer's 12v power them OK? (I'm electrically challenged..) This is a real boondocker's dream come true..
Rick,

Thank you for the kind words on the fixture. Just a one for one replacement of the original 12V fixture, no special power supply, operating range is something like 10-14.5 volts. Each one of the 8 light strips consume 27mA and total is 216mA. I got that info off the Superbright web page. I was also told by someone much smarter than I that the original fixture would have consumed about 1.3amps, so that is a tremendous difference.
LB3 Dimensions (mm)
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Old 04-07-2008, 10:05 PM   #18
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wow, they even come with connecting plugs...even a doofus like me could probably handle making one of those! I have bookmarked both links and will try my hand at putting some of these together for future boondocking...pretty clever "frosting" of the tubes, too..amazing what that 220 grit paper can do!
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Old 04-07-2008, 10:10 PM   #19
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Originally Posted by vswingfield
Hi Royce,

4x5 huh? Now you are down to 1 of 2. I still have a Yashicamat 2¼x2¼ twin lens reflex. I got it at the State of Arkansas’ used equipment sales office back in the early ’90s. They had a big meat box full of them. I picked through the box and picked the best camera and the best case. I have an original leather case without a single scratch. Same for the camera. The thread in the stitching is rotten, though.

I do recall that a sort of mentor, the local studio photographer had an 11x14 camera and a 4’ diameter gas fired print drier.
Vaughan,

Wow, you got a real find! I bought a Yashicamat 124G for $60 in about '87', like new, it followed me around the country and across the pond twice, I sold it for $160 back to the same dealer after heavy brassing and lots of leather scratches in '96'. Wish I could find another good one to take better care of. BTW, I still have the close up lens attachment from a Rolliflex that will fit the 124G. When I sold the camera the dealer said the closeup attachment was of no value. Go figure. My primary square shooter is a Hassey 500C so have no real use for the 124G anymore. I do have a spare Linhoff 4x5, if you know anyone interested.

4 foot print drier, hard to identify with something like that. Must have been quite a site in operation.
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Old 04-07-2008, 10:17 PM   #20
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I actually shot some b/w FILM last friday, first film shoot in four years...had a hard time framing/focusing the 500 c/m cuz last time I used it I didn't wear glasses! I also have a linhof, don't know when I'll get around to using it again ?? The 'blad lenses are so much more "correct" and natural compared to all my Canon digital stuff, I really miss that look... one reason I got the Safari was to turn it (eventually) into a remote "studio" ala Irving Penn's "worlds in a small room" project...I want to rig up an extension to the Zip Dee and use canvas 'walls' to do location portraits...good luck shooting!
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Old 04-07-2008, 10:26 PM   #21
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Originally Posted by fotochop
I actually shot some b/w FILM last friday, first film shoot in four years...had a hard time framing/focusing the 500 c/m cuz last time I used it I didn't wear glasses! I also have a linhof, don't know when I'll get around to using it again ?? The 'blad lenses are so much more "correct" and natural compared to all my Canon digital stuff, I really miss that look... one reason I got the Safari was to turn it (eventually) into a remote "studio" ala Irving Penn's "worlds in a small room" project...I want to rig up an extension to the Zip Dee and use canvas 'walls' to do location portraits...good luck shooting!
Rick,

Sounds like a dream come true.

Also like the work on your site. Well done, you have a real talent for the portrait!
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Old 04-07-2008, 10:29 PM   #22
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Very nicely done. It is refreshing to see someone do something as well as you have. Bravo!
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Old 04-29-2008, 12:27 PM   #23
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Thank you all for the kind remarks. Here is a final photo after we painted the underside of the overhead. I am working on an article based on this design to include detailed build and assembly instructions. Not sure where we will submit to but have to get the article written first.
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Old 04-29-2008, 01:14 PM   #24
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From the responses, sounds like you could make some money selling these!

Nice work!
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Old 06-18-2008, 04:20 PM   #25
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Rivet Automotive Bulbs in Original Fixture?

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I finally woke up enough to remember that I have a fine Zone VI modified one degree spot light meter. So back out to the Minuet. Reading reflected off the palm of hand 18” from the fixture. New fixture reading is 8, and the fixture in the Bathroom which is the same fixture as the one removed from the galley and the reading is 7.66. So they are very similar, at least in terms of what B&W film would see.
Hi again Royce,

Was admiring your work again today and have a question. How many automotive bulbs were yielding 7.66?

Thanks,
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Old 06-18-2008, 04:47 PM   #26
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Lightbulb

Beautiful fixture you made! I've always been better at making things work, than making them nice.

It is a good idea, mixing warm and cool white. The only drawback would be, if the two hues are spatially separated like in the picture, it will result in shadows with a strange chromatic fringe. Blending the two types across the whole fixture will help prevent this, but it is difficult to do with prefab strips.

I bought some very nice 10mm discrete LEDs on ebay from a hong kong seller. They include dropping resisitors for 12v applications, but I'm going to make mine in groups of 3 LEDs in series for each dropping resistor. I figure two cool whites and one warm per group will look good. The trouble is, LEDs are so directional it is hard to blend the light. Being inside a bezeled fixture helps. Make sure all surfaces inside the fixture are painted flat white, this will help.

I don't have the URL handy, but google for "led resistor calculator" if you're designing something.

Something I'm doing in one of my other (SOB) trailers is adding a bank of red LEDs to the fixtures. This is to preserve night vision, for stargazers and hunters. On a total resto, you might consider adding at least one extra wire to each fixture, for a single on-off point for the red.

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Old 06-19-2008, 07:51 PM   #27
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Hi again Royce,

Was admiring your work again today and have a question. How many automotive bulbs were yielding 7.66?

Thanks,

Vaughan,

That would be three of the 12V lamps with the factory diffuser in place.
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Old 06-19-2008, 07:55 PM   #28
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...

Something I'm doing in one of my other (SOB) trailers is adding a bank of red LEDs to the fixtures. This is to preserve night vision, for stargazers and hunters. On a total resto, you might consider adding at least one extra wire to each fixture, for a single on-off point for the red.

-SilverSausage
That is a great idea! Save carrying a separate red light.
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