Stormwatch
sage
Reged: 11/27/06
Posts: 263
Loc: Scotland
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I'm sorry to be posting about this camera when there's probably loads about it already here, but I can't find anything with the search function which, frankly, I can't seem to work very well.
I'm just checking, the Canon EOS 300D, or one of the "Rebel" variants, are ideal for deep space astroimaging? There seem to be a lot of different versions around on eBay - are there any I should avoid like the plague?
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Celestron C8-SCT, Celestron 102 SLT, Canon EOS 300D, Toucam Pro II, CG5-GT mount
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ToeMoss
professor emeritus
Reged: 09/18/05
Posts: 571
Loc: Jacksonville, Florida
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Without trying to go into the differences, the Canon Models 20D, 300D, and 350D seem to be widely used by Imagers so I would say these are safe.
As for the search function:
Make sure you indicate which forum you want to search in the drop-down list on the left side of the page. Select this forum from this list.
Select your keyword, 300D in your case.
I'd try the subject only option at first.
Leave the Username field empty.
Then Select New than 12 weeks for starters, more if you dont see the results you were looking for.
Hope this helps some.
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Tom Morris
LXD75 SN8
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ChazK
Pooh-Bah
Reged: 11/23/05
Posts: 1453
Loc: Melbourne, Florida
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Both will work just fine for starters. I would suggest you spend just a tad more and go for one of the Hutech mods.
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Tak TOA 130mm/NJP Temma2
Tak FS 60CB
Canon 40D (unmodded)
Canon EF 28-135mm f/3.5-5.6
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Kentari
scholastic sledgehammer
Reged: 11/19/06
Posts: 838
Loc: Belgium
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If you can, try to skip the 10D / 300D generation. They have first generation sensors which are very noise compared to the second generation. 20D/350D/30D/400D all have a second generation sensor and will perform much better. That doesn't mean 10D or 300D are bad for astrophotography, but imho the saving is not big enough to tolerate the extra noise.
Koen
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Darkstar 355 f/5 Dobsonian
Orion UK 8" f/4.5 Newtonian on Losmandy GM8
Canon 20D DIY mod with Baader filter
A bunch of lenses: 10-22mm f/3.5-4.5, 17-40mm f/4, 50mm f/1.4, 70-200mm f/2.8, 300mm f/2.8
www.koenvangorp.be
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oldwexi
member
Reged: 08/28/05
Posts: 40
Loc: Austria
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Hi Stormwatch!
I have tried many Canon DSLR`s. One result is sure.
The cameras vary VERY MUCH within the same model.
I have a 10D which has less noise than my 350Xt and the 400XT.
I even compared a 20Da side by side with two 10Ds- Made
darkframes for five minutes at 27 Celsius.
The 20Da was more noisy than the 10D`s.
On them other hand i had 7 (seven)300D`s in my hand for testing.
Only 1 was very good, 1 was acceptable 5 were unusable for
astrowork!!!
The 10D`s are much better in that way. So far from 5 (five) 10D`s i had to use only 1 was noisy.
From the new cameras i would not recommend the 400Xti
it shows the most noise.
Anyhow my recommandation is:
Before you buy ANY DSLR
no matter what model, test it with a 5 minute dark frame at
room temperature. The bad cameras will show a lot of
red and blue dots on the black image. The good ones only a few small ones ore none.
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Gerald
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Andrew Welsh
Carpal Tunnel
Reged: 03/28/06
Posts: 2571
Loc: Rochester, NY
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One big advantage of the 350D / XT over the 300D is the 350D has USB 2.0. This means Raw images take 2-3 seconds to download versus 30-40 seconds. Over the course of a night, that adds up to many additional exposure you can take.
Otherwise, both models (300D and 350D) are ideal DSLRs for astrophotography. The 300D is less expensive and you can use the difference in cost to have Hutech do the IR filter removal (the Hutech "mod"), which will make your camera 10x more sensitive to reds, which will allow you to image nebulae much faster.
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LX200 8" classic, f/10, Meade eq. wedge, .63x FF/FR
Canon 40D (LifePixel clear glass mod) and 5DMkII, unmodified
Canon EF 200/2L IS, 400/5.6L, 100/2.8 Macro, 50/1.4, 85/1.8, 35L, 24L, 17-40L and Peleng 8mm fisheye
Orion Apex 102mm (4") Mak-Cass
Pimped out with accessories and bling
My DSLR Astrophotography Webpage and photo bucket with full equipment list
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Stormwatch
sage
Reged: 11/27/06
Posts: 263
Loc: Scotland
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Thanks for all the replies everyone. I'm looking on eBay at them, although I'm going to wait till I've got used to the Toucam before I buy a DSLR camera.
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Celestron C8-SCT, Celestron 102 SLT, Canon EOS 300D, Toucam Pro II, CG5-GT mount
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oldwexi
member
Reged: 08/28/05
Posts: 40
Loc: Austria
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Hi,
would not recommend to buy a DSLR for astrophoto on Ebay,
because as i mentioned already you can get a VERY noisy camera no matter what model you choose!!!
In such a case you have an unusable DSLR and you buy very expensive!!!!
You should check a DSLR before buying with making darkframes (!!!!) concerning noise.
Buying a DSLR for astrophoto on Ebay is like
putting your money on the roulette table.
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Gerald
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Rusty
Postmaster
Reged: 08/06/03
Posts: 19246
Loc: Brooker, FL
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Unfortunately, buying any DSLR for astrophotography will be a crapshoot, regardless of where one gets it; few, very few, sellers, will have evaluated the Canon for AP. Both of mine turned out to be pretty good; one I modified with the Baader UV/IR cut filter, the other is my snapshot camera.
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N11GPS Fastar//TOA-130S//MK66 Std//AT6RC//Vintage C5//Megrez II 80mm APO//SolarMax 40
NJP Temma II//Sirius EQ-G
Too Many Astro-Cameras//Mallincam Color Hyper Plus
Two not-spoiled Golden Retrievers - Casey and Nelson
Lot 19 Deerlick Astronomy Village (Canis Major)
Sometimes I think we're alone in the universe, and sometimes I think we're not. In either case the idea is quite staggering. - Arthur C. Clarke
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NewAstronomer
Post Laureate
Reged: 09/03/04
Posts: 3767
Loc: Northeast, PA U.S.A
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I'll be buying within a month or two and was looking at the cheaper Canon DSLR's (Digital Rebel XT 8MP DSLR, is that the 300D?)
When you say test with a 5 minute dark frame, what is that, exactly ? Hold something dark over the lens while in bulb mode for 5 minutes then review on the LCD view finder and determine if many red/blue dots/pixels appear?
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Edited by NewAstronomer (03/01/07 07:35 AM)
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fetoma
Carpal Tunnel
Reged: 09/26/06
Posts: 1851
Loc: Southern New Jersey
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Quote:
(Digital Rebel XT 8MP DSLR, is that the 300D?)
The Digital Rebel XT 8MP DSLR is the 350D.
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Frank in the NJ Pinelands
Vixen GP-DX w/AutoStar * Orion Atlas EQ-G
Meade SN-10 * Meade 8" f/6.3 SCT * Intes-Micro M73 * Stellarvue 80/480 LOMO Triplet * Takahashi FS-60C *
http://www.jerseydevilastronomy.com
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fetoma
Carpal Tunnel
Reged: 09/26/06
Posts: 1851
Loc: Southern New Jersey
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Quote:
When you say test with a 5 minute dark frame, what is that, exactly ? Hold something dark over the lens while in bulb mode for 5 minutes then review on the LCD view finder and determine if many red/blue dots/pixels appear?
You got it!!!!! Maybe the lens cover in a dark room would be better. But you would want to view it on a PC monitor rather than the camera LCD.
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Frank in the NJ Pinelands
Vixen GP-DX w/AutoStar * Orion Atlas EQ-G
Meade SN-10 * Meade 8" f/6.3 SCT * Intes-Micro M73 * Stellarvue 80/480 LOMO Triplet * Takahashi FS-60C *
http://www.jerseydevilastronomy.com
Edited by fetoma (03/01/07 07:54 AM)
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NeoDinian
Experienced Postmaster
Reged: 10/05/05
Posts: 14043
Loc: Rockford Illinois
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Set the camera to RAW... 
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Neo... (Jeff)
-=-=-=-=-=-=-
10" LX200-GPS/SMT UHTC "Draco"
 Rockford, Il.
NeoDinian's Eye on the Sky!
Coming soon:
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NewAstronomer
Post Laureate
Reged: 09/03/04
Posts: 3767
Loc: Northeast, PA U.S.A
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Quote:
Quote:
When you say test with a 5 minute dark frame, what is that, exactly ? Hold something dark over the lens while in bulb mode for 5 minutes then review on the LCD view finder and determine if many red/blue dots/pixels appear?
You got it!!!!! Maybe the lens cover in a dark room would be better. But you would want to view it on a PC monitor rather than the camera LCD.
Aha, hmm, that will make it difficult to "test it" at the store , I'll need to make sure I get it at a vendor with a good return policy ;-)
Thanks for the tips
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NewAstronomer
Post Laureate
Reged: 09/03/04
Posts: 3767
Loc: Northeast, PA U.S.A
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Quote:
Quote:
(Digital Rebel XT 8MP DSLR, is that the 300D?)
The Digital Rebel XT 8MP DSLR is the 350D.
OK next question What is the Canon EOS Digital Rebel XTi 10.1 MP version ?
EDIT: I did some googling and found that the 10.1 MP{ version is the 400D.
so my question really is, if the vendor I am choosing has package deals on the 350D versus 400D, forget price for a second, are they about the same performance wise for AP ?
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Edited by NewAstronomer (03/01/07 05:25 PM)
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NeoDinian
Experienced Postmaster
Reged: 10/05/05
Posts: 14043
Loc: Rockford Illinois
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Quote:
Quote:
Quote:
When you say test with a 5 minute dark frame, what is that, exactly ? Hold something dark over the lens while in bulb mode for 5 minutes then review on the LCD view finder and determine if many red/blue dots/pixels appear?
You got it!!!!! Maybe the lens cover in a dark room would be better. But you would want to view it on a PC monitor rather than the camera LCD.
Aha, hmm, that will make it difficult to "test it" at the store , I'll need to make sure I get it at a vendor with a good return policy ;-)
Thanks for the tips
If you have a laptop, bring it with...
I tested mine, didn't even put a lens on it. Left the camera cap on. Just set to Bulb, set the image as RAW, used a remote, opened the shutter, walked away.. Came back 5 minutes later.
You'll see some dead pixels (or hot pixels) in every camera you test.. but you want to find one with the least amount. Also pay attention to the Amp Glow on the right side (for the XT 350D).
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Neo... (Jeff)
-=-=-=-=-=-=-
10" LX200-GPS/SMT UHTC "Draco"
Rockford, Il.
NeoDinian's Eye on the Sky!
Coming soon:
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ccs_hello
Postmaster
Reged: 07/03/04
Posts: 5224
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Probably bring your own battery in as well.
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fetoma
Carpal Tunnel
Reged: 09/26/06
Posts: 1851
Loc: Southern New Jersey
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OK next question What is the Canon EOS Digital Rebel XTi 10.1 MP version ?
EDIT: I did some googling and found that the 10.1 MP{ version is the 400D.
so my question really is, if the vendor I am choosing has package deals on the 350D versus 400D, forget price for a second, are they about the same performance wise for AP ?
I believe there was some talk about the 350 being less noisier than the 400. You should check into that.
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Frank in the NJ Pinelands
Vixen GP-DX w/AutoStar * Orion Atlas EQ-G
Meade SN-10 * Meade 8" f/6.3 SCT * Intes-Micro M73 * Stellarvue 80/480 LOMO Triplet * Takahashi FS-60C *
http://www.jerseydevilastronomy.com
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