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Martytoof posted:Pentax in space, bitches! this is pretty amazing from an space engineering pov. not that it was able to withstand operation in a vacuum but that it the k10d may be considered space rated (though it probably needs to go through thermal cycling). Also, I think a Nikon is used on the ISS to take photos of earth as a part of an experiment.
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Sep 9, 2009 20:58
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Martytoof posted:As far as cameras in space go, all I can imagine is the mirror slapping open and sending a camera twirling in zero-g. I'm sure that violates some law of thermodynamics but I can't help but laugh. cameras mounted on probes and satellites require quite a bit of isolation and shock absorption from any vibration from the spacecraft (reaction wheels/CMGs/ et al). For something like Hubble, well, I would hate to be working on their attitude, determination, and control (ADC or ACS) team because they probably have pointing requirement of keeping some miliarcsecond precision over the course of a week. On that note. here's the gibbis thread on the new Hubble photos: http://forums.somethingawful.com/showthread.php?threadid=3198607 also: evil_bunnY posted:Well it does slap back down a fraction of a second later 8) p much. momentum's conserved.
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Sep 10, 2009 07:43
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Four Banger posted:Oh yeah, AND he charges the people 5 bucks a pop to get their picture taken, FOR HIS PROJECT. PT Barnum is posthumously patting this guy on the back
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Oct 8, 2009 21:08
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Cyberbob posted:I loved The Fountain as a film, I'll have to rewatch it for the cinematography. worth mentioning the fountain used no CGI for the nebula/bubble special effects
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Nov 13, 2009 21:16
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notlodar posted:I went to William Eggleston's new show, got his autograph, and then ripped in in half when I got in to the first fight with the girl I'm in love with you seem to have a lot of relationship issues that come out in dorkroom threads.
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Jan 8, 2010 18:09
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stealing this from LF to post here:Vernii posted:
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Jan 14, 2010 08:27
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well wait those million years and maybe sensor prices will go down. 
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Jan 21, 2010 09:37
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Wooten posted:I think these days its just about paying to do it yourself and trying to sell the photos later, unless you already work for some kind of publication. I think the trick is being independently wealthy or having the ability to get a hefty grant or loan. Seriously, how do people go about selling photos? I'm pretty far removed from the actual photog community but I think I have a few shots from my trip to Kashmir that might be publishing worthy.
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Mar 10, 2010 18:34
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^ heh just browse all the photographer pages your friends are fans of. babby's first dslr i bought an asus netbook for my trip to kashmir for just getting pics from my SD card and some music now and then. lil guy performed well and lasts 5 hours on a charge (well, as opposed to the advertised 8) it's great to just have lying around the apartment and a lot more comfortable than my phone to browse on. then again, it couldn't even properly play HD video my DSLR took 
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Apr 1, 2010 00:44
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well this thread grew and i'll withhold my kill the troops comments. That Leica review's pretty pathetic. As a counterpoint, wasn't there a photo of a Leica that got shot and stopped a bullet? e: ^ i hate to judge by a few low res examples, but my pentax k7 does better at high iso in daylight if i were to look at a thumbnail that large guidoanselmi fucked around with this message at 03:03 on Apr 7, 2010 |
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Apr 7, 2010 03:01
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heh, my employer invented the digital camera 
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Apr 7, 2010 09:12
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tuyop posted:Yeah, it's IR spotlights and stuff that you have to be worried about. on the same topic, green lasers are frequency doubled meaning that it gets pumped from ~1000 nm to ~500 nm. On poor quality imported green lasers there's no IR filter and poor conversion so there's an IR halo around the green point. tuyop posted:On our new rifle attachments there's a huge infrared spotlight. I had a headache for two days when my body shined it in my eyes. I couldn't see any light or anything special (because I wasn't wearing IR goggles), but there's still a shitload energy in the beam. I'm not really worried because I don't have my camera when I have a rifle, but just a heads-up. Some video camera systems use something slightly similar. wiki posted:Infrared lasers are particularly hazardous, since the body's protective "blink reflex" response is triggered only by visible light. For example, some people exposed to high power Nd:YAG laser emitting invisible 1064 nm radiation, may not feel pain or notice immediate damage to their eyesight. A pop or click noise emanating from the eyeball may be the only indication that retinal damage has occurred i.e. the retina was heated to over 100 °C resulting in localized explosive boiling accompanied by the immediate creation of a permanent blind spot.
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Apr 16, 2010 23:39
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wow, some people just dont know anything about physics.
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Apr 21, 2010 18:08
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i used an HDR photo of mine for an old GBS PS thread where I turned it into a scene from stalker. like a dozen people emailed me to ask for the original  also, i think my hdr phase lasted like 6 months. i dunno if that's forgivable or not.
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Apr 30, 2010 03:08
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quick game of identify the camera: Someone posted this on CL saying it's kodak and knows nothing else. Selling it for $30. Is it a Brownie? What film would it shoot?
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May 27, 2010 22:13
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That's what I was worried about - I'm not going to want to respool or shave down 120 spools. Forget it.
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May 27, 2010 22:36
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torgeaux posted:My first digital was the Mavica FD, using the 1.4MB 3.5 inch floppies. I still have those floppy disks somewhere. Of course, I have no computer with a floppy drive. My father bought one a few years ago as a gimmick. He's always had a thing about collecting cameras and never using them. I hobby that has definitely benefited me.
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Jun 2, 2010 18:59
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^^ doh!AIIAZNSK8ER posted:Yay, welcome back. Didn't Dorkasaurus get banned as well? Yeah, FYAD purge of LF.
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Jun 3, 2010 17:24
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That chart is me.
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Jul 1, 2010 09:28
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Ditching your Pentax kit (don't know which body it is) won't get you enough money to reinvest in a different line up, fyi. This is especially the case if you're shooting with manual focus lenses. The FA line is seriously great bang for the buck, but their prices have gone up a lot in the past few years.
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Sep 4, 2010 07:49
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I use my K10D to loan out to friends. That's about as much use as it gets nowadays. I'd look into FA lenses that come up on pentaxforums marketplace as there's typically reasonable deals to be had. FA zooms are pretty cheap and sharp (I got my FA telephoto for $40 that was lost somewhere in a ritz camera and have no complaints except it's not fast). If having slow, non-AF glass is your issues then you might be able to fix that for cheaper than a switch over unless you just want to borrow lenses from friends.
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Sep 4, 2010 08:03
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evil_bunnY posted:Repeat after me: Am I under arrest or am I free to go, offissah? seriously one of the most important things to know
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Sep 16, 2010 00:55
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Why do people care so much about straps?
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Sep 27, 2010 20:35
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geeves posted:I didn't realize how bad the HDR problem really was until I looked into the ghettos of Flickr and found this group they're really pretty 
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Sep 29, 2010 08:54
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xzzy posted:And the good ones look like screenshots from video games. Back when I did HDR, I used one of my photos for a photoshop thread in GBS where you photoshop game HUD scenes into real photos. I did one of stalker and people thought I lifted it from the game: http://i184.photobucket.com/albums/x119/drstrangeluv25/STALKER.jpg I'd like to think my photography & ps has improved a bit since
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Sep 29, 2010 16:44
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Martytoof posted:You mean I'm not supposed to put the real ones in there? Hey, if you had invested in the pentax weather resistant lenses...
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Oct 12, 2010 08:09
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xzzy posted:It amazes me how high up you can be, and still resolve points in a city. He gets from Israel to Tunisia and you can still pick out Cairo. low earth orbit isn't very far away. the space station is 173 miles away and if you run the calcs for how well you can resolve a point source from a distance (in space, darkness, etc) you'd be really surprised. math stuff below: Threshold Intensity/observing area = Radiated Power/Surface Area = R. Power / (4 Pi dist^2). E = planck constant * speed of light / wavelength (planck & speed of light are constants & wavelength is between 400-600 nm). Use a threshold intensity, eg human eye will trigger on ~5 photons, and area, pi (5 mm)^2 so assuming a 10 W red light bulb: 5/(pi (5 mm)^2) = 10/(h c/600 nm) / (4 pi r^2) and solve for r. god im bored guidoanselmi fucked around with this message at 06:37 on Nov 2, 2010 |
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Nov 2, 2010 06:01
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spog posted:http://gizmodo.com/5678601/what-your-choice-of-camera-says-about-you gently caress it i wanna buy a sigma camera.
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Nov 2, 2010 06:03
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it's the max distance that you can observe a light source with perfect seeing and no other light. it's also AP level physics fwiw also made an error. gunna edit in a correction. guidoanselmi fucked around with this message at 06:38 on Nov 2, 2010 |
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Nov 2, 2010 06:35
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RangerScum posted:Let's stop talking about math now, please.  Captain Postal posted:so if 5 are needed (and I don't think this is correct - the fovea responds to 5 photons, but the brain doesn't precess the signal, but assuming it is correct) I vaguely remember that from an old physics q. I just remember it was on that order of magnitude. Looks like it's around 9 absorbed: http://en.wikipedia.org/wiki/Absolute_threshold#Vision
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Nov 2, 2010 22:37
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whoa this is awesome
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Nov 4, 2010 05:30
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 quote:Mamiya Pistol Camera I've heard of these and drat they sound cool.
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Nov 11, 2010 04:58
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hey dorkroom, does this sound like an nice opportunity to buy poo poo and turn for a profit? http://slo.craigslist.org/ele/1994978155.html quote:Canon Power Winder A The extra copy/paste is theirs. I wonder how reselling all of it to keh would go? I figured the Mamiya 645 and 80 mm f/2.8 should do $300 at least if in decent condition?
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Nov 12, 2010 00:01
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Update: the guy from CL refuses to list the condition of the stuff, insisting I just come and buy it. It's also 140+ miles away and my friend close wouldn't know what to look for. I think I'll pass unless someone's around Santa Barbara.
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Nov 13, 2010 10:33
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Is anyone doing the NatGeo photo contest? I have a lot of photos from Kashmir that would probably fare well, but the $15/photo to enter is pretty $$. Has anyone had any experiences or have advice on whether or not I should do anything?
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Nov 29, 2010 01:34
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Fists Up posted:Maybe you could post some of your favourites here and get a vote on the best for entering? There's a lot I can post, but here's a few - not even my favorites:       quote:Whats the link to the competition? http://ngm.nationalgeographic.com/ngm/photo-contest/faq/
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Nov 29, 2010 03:17
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It'd just take forever to find & go through them - let alone just not wanting to see some of the photos. I just picked out a few photos that I thought would stand out. Either way, probably not worth the $15 x N. Whatever.
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Nov 29, 2010 04:44
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aviation week was like $100 i think. i actually spat out my coffee IRL upon reading it.
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Nov 29, 2010 07:01
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hmm, he teaches a few miles from me. maybe i should enroll?
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Nov 30, 2010 22:53
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| # ¿ May 2, 2024 06:39 |
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HEY DORKROOM! I HEARD YOU GUYS LIKE MY AERIAL PHOTOS If so, here's an opportunity to support me via Kickstarter: http://kck.st/h5Wht4 I'm starting a project to take photos of LA. I have pilots and planes - all I need is your valuable, hard-earned money. I'll give you prints & stuff in return. If you live in LA, I'll take a photo of your house! (Brad, if this is bad - I can edit it out )
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Dec 8, 2010 23:16
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