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ravnostic
Participant
“Hrrm. Deez smells good.”
“Do dey tastes as good?”
“You got a problem wid dat?”ravnostic
ParticipantAlso your airplane picture is pretty cool ravnostic
Yeah, I liked that one, too. Sadly I had more to choose from this time than I could use. The B-sides will come into play elsewhere.
ravnostic
ParticipantFair game. My cat’s cooler than your cat.



ravnostic
ParticipantWow, good work. I’m even more impressed that he went through the trouble of getting all the scientific names for them.
ravnostic
ParticipantI knew that shot was…er…coming…from someone. Can’t say I’m surprised it was you. The fingers make the shot. Seems tame enough, though. They’ve been raunchier on network tv.
ravnostic
ParticipantI got a gotta do, a shoulda do, and a maybe do. But the night ain’t over…yet.
+1 on Magnesium. Which reminds me…[gets camera, saved lighter flints…]
June 23, 2010 at 2:18 am in reply to: The estate sale ad read, "cameras and darkroom equipmen #29584ravnostic
ParticipantThen it’s not the same; in telescopes, they don’t so much talk about ratios except in relation to exposure times; and the receiving sensor (whether the human eyeball or lens) is always factored in in regards to ‘powers’ (i.e., 100x, 200x etc.)
ravnostic
ParticipantWow. Makes me want to hang my camera up and cry. Nice work! I wonder if that third image in ‘Flow’ would be appropriate for B&W and G all over? In my monitor, it does, but I’ve learned my monitor isn’t the bestest for judging these things.
Good job on the website!
June 23, 2010 at 12:40 am in reply to: The estate sale ad read, "cameras and darkroom equipmen #29582ravnostic
ParticipantI’ve got two old projectors, that I’m going to have to take a closer look at their lenses now.
Does it have any sort of adjustable aperture to it, or is it fixed?
Completely fixed; the adjustment knob just moves the lens assembly back and forth for focusing an image on the wall.
Are you sure the second lens was in the optical path of the projected slide? It sounds might be a modifier for the light source rather than part of the actual projection.
The slide would fit between the two lenses, so I guess you’d be correct on that. However, for my purposes, the two would be used in tandem. If I didn’t have the whole thing taken apart at the moment, I’d stick my camera in there and get you a shot (I might put it together and do so anyway, though I don’t have a good subject in mind.)
The f/stop numbers don’t indicate macro–that’s just how much light they let in relative to the focal length. Macro just refers to the ability to focus close enough and provide enough magnification that the subject’s size on the focal plane is lifesize.
O-righty-then. Don’t need the larger lens for that (see flower pic, above; taken about 1-2″ from it with just the Darlot and my camera in tandem).
Yeah, for a simple lens, to get to 1:1 you need extension of 2x the focal length from the imaging plane (infinity is at 1x)
Okay, you lost me. Imagine my camera w/it’s 55-80mm set at 80 (sensor 24mm), then through the Darlot (which is also 80mm, apeture 40mm). Close? Therabouts? Either way, it’s better than what I’d been getting.
ravnostic
ParticipantMy isoprop is 91% with deionized water; didn’t seem to leave steaks (not OTC drugstore stuff), but I’ll keep your advise in mind, as well. And I don’t plan on cleaning the sensor (or really, the coating over the sensor) with any frequency anyway. But if you recommend Eclipse as a safer product, I’ll pick some up next time.
June 22, 2010 at 8:08 pm in reply to: The estate sale ad read, "cameras and darkroom equipmen #29577ravnostic
ParticipantI think I’m going to have fun with the Argus cameras; I’ll try both with a roll of film, but I’m hoping the 1940 one works as good as the other (bragging rights, etc.)
As for the projector and lens, I’m afraid I won’t be able to let them go. Originally I thought I’d make back more than I paid for everything by selling it, but after toying with the lens in the most-crude of fashions, I’m too impressed to give it up. Given the f/2 of the Darlot and f/.5 of the 4.5″ lens, it’s a true-macro (I think–no?). All I have to do is gerry-rig my camera into proper position within the housing, and I could have a very, very nifty toy.
However, I just saw a whole projector go for $135 on ebay the other day, and it was more complete than mine. I think since it wasn’t listed under ‘Darlot’, the seekers of that lens might have overlooked it. Keep an eye out for ‘magic projector’, you might do as well.
It’s a sweet, sweet lens. Ironically the companion lens isn’t much better than green glass (complete with tiny bubbles) but, in tandem, they work beautifully.
Should I see anything (and I’m going to continue hunting the photography oriented estate sales), I’ll either let you know, or buy another and give you options on whichever lens I’m willing to part with.
ravnostic
ParticipantUsing the blower brush, and a high-quality q-tip with isoprop (care taken to rotate with the qtip grain), I got down to 1 smaller-than-the-original speck of dust. I then took a f/40 infinity focused image of the sky, set it as the ‘dust-delete’ image, and things seem to be fine. I do have a good camera shop nearby; next time I’m in I plan on asking them about cleaning tools. (I also want to see if the boss will let me pilfer some of the clean-cloths we use at work; designed to not shed fibers as microchip contamination is frowned upon, of course.)
ravnostic
ParticipantKestranaAt work viewing on a different monitor; see what you mean about the car engine shot. Great, now I want a better monitor
June 22, 2010 at 7:47 am in reply to: My first little foray into long exposure astrophotography #27877ravnostic
ParticipantElsinoreI did some looking; the wedge for your scope is actually $600. 😥
However, sometimes these things come up on ebay and craigslist, for much cheaper.
ravnostic
ParticipantNope, just a cloudy day on Feb 28th before spring colors hit. There is color there–just not much (which is why I didn’t use it in ‘Pan’)
Time to hunt down a neice or cousin’s kid. One must be prepared…
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