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09-02-2010, 12:29am
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New Member
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Join Date: 02 Apr 2008
Posts: 8
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550d preview
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09-02-2010, 10:26am
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It's all about the Light!
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Join Date: 15 Jun 2008
Location: Modbury, Adelaide
South Australia
Posts: 10,280
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http://www.dpreview.com/previews/canoneos550d/
http://www.amazon.com/Canon-T2i-Digi...P938NPFG3X2SVB
* 18.0-megapixel CMOS (APS-C) sensor; DIGIC 4 image processor for high image quality and speed
* Kit includes 18-55mm f/3.5-5.6 IS lens
* ISO 100-6400 (expandable to 12800) for shooting from bright to dim light; enhanced 63-zone, Dual-layer metering system
* Improved EOS Movie mode with manual exposure control and expanded recording 1920 x 1080 (Full HD)
* Wide 3.0-inch Clear View LCD monitor; dedicated Live View/Movie shooting button
* New compatibility with SDXC memory cards, plus new menu status indicator for Eye-Fi support
SDXC is interesting - much more storage - useful for vids.
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regards, Kym Honest & Direct Constructive Critique Appreciated! © Twitter
 K-7, K20D both gripped, MX(film), 50mm f/1.7 manual, AF-540DGZ | Sigma: 50-500 f/4-6.3 APO DG, 10-20 f/4-5.6, 18-50 f/3.5-5.6(kit), EF-530 DG ST flash | Tamron: 28-75 f/2.8, 85-210 f/4.5 manual, macro| Other: 055XproB+486RC2| Light tents; Macro rings, etc.
 Avast thar ye scurvy dogs! 19th o' S'tember be ye TLAPD  Be ye spying that POTW startin' 2010-09-05 be 'aving a Piraty theme!  So thar ye lubberly bilge rats be ye taken some princely piratey photographs! 
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09-02-2010, 1:45pm
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______________
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Join Date: 27 Feb 2008
Location: Brisbane
Queensland
Posts: 1,391
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Quote:
Originally Posted by Kym
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Interesting link, Kym.
Tapping some assumptions into their "limited by diffraction?" calculator suggests that diffraction becomes an issue somewhere between f/13 and f/16 on an 18MP 1.6x crop camera on a 10 inch print viewed at 25cm.
This tallies with my own unscientific experience of using the 7D, whereby I think IQ starts to suffer at f/16 and above. Limiting myself to f/13 when shooting macros is a pretty significant constraint, but for general photography it's probably less of an issue.
Last edited by Tricky; 09-02-2010 at 1:47pm.
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09-02-2010, 1:48pm
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watching out for black helicopters
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Join Date: 25 Sep 2008
Location: Adelaide
South Australia
Posts: 1,781
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Some nice specs there - Just wondering how this is different from a 7D though?
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09-02-2010, 2:38pm
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The Early Worm
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Join Date: 20 Mar 2008
Location: Terranora, north coast NSW
New South Wales
Posts: 4,012
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These new models every 5 minutes are getting ridiculous.
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09-02-2010, 3:50pm
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Canon's Favourite Investor :)
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Join Date: 09 Sep 2007
Location: Brisbane
Queensland
Posts: 464
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Canon 550d is here.
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Canon 5d MKII w/ Grip - Canon 40d w/Grip - Canon 17-40 f4L - Canon 17-55 f2.8ISL - Canon 60mm f2.8 Macro - Canon 24-70 f2.8L - Sigma 30mm f1.4 - Canon 50mm f1.4 - Canon 85mm f1.8 - Canon 70-200 f2.8L - 580EXII - 580EX
Last edited by I @ M; 09-02-2010 at 3:59pm.
Reason: Merged to earlier thread.
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09-02-2010, 4:05pm
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Formerly: Solilocey
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Join Date: 15 Feb 2009
Location: Perth,Australia
Western Australia
Posts: 796
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didn't the 500D come out 6 months ago??? 
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09-02-2010, 4:12pm
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It's all about the Light!
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Join Date: 15 Jun 2008
Location: Modbury, Adelaide
South Australia
Posts: 10,280
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Quote:
Originally Posted by Tricky
Interesting link, Kym.
Tapping some assumptions into their "limited by diffraction?" calculator suggests that diffraction becomes an issue somewhere between f/13 and f/16 on an 18MP 1.6x crop camera on a 10 inch print viewed at 25cm.
This tallies with my own unscientific experience of using the 7D, whereby I think IQ starts to suffer at f/16 and above. Limiting myself to f/13 when shooting macros is a pretty significant constraint, but for general photography it's probably less of an issue.
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Yup! The megapixel war is over - pixel density & size ... and physics is the cause !
The only way to 'fix' it is bigger pixels and that means bigger sensors if you want lots of pixels.
I'm waiting to see the Pentax 645D later this year - a medium format DSLR.
Bigger pixels also mean less noise.
It is also why (APS-C) a (say) 12mp camera may do better than an 18mp in some situations.
If only someone could develop a diffraction-less lens 
(and if your wondering why that statement is a joke ... think pinhole camera)
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09-02-2010, 4:20pm
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Canon abuser
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Join Date: 30 Oct 2006
Location: Bris Vegas
Queensland
Posts: 1,003
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Quote:
Originally Posted by MattC
Some nice specs there - Just wondering how this is different from a 7D though?
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hmmm let me think about it...
7D has twin Digic4 Processors, does 8 fps, and has 19 all cross type AF points... and thats just the stuff written on the box...
M
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www.pbase.com/mcphotographics loooots of pictures!
hmmm Eq list... 1D II, 7D, 40D, 30D spare, 100-400 LIS F4.5-5.6, 70-200 F2.8L, 85 F1.8, 24-70 F2.8L, 16-35 F2.8L, 10-22 EFS F3.5-4.5, 50 F1.8, 420EX, 580EX II x2 ST-E2 Cir polar filters and much much more all in a neat back pack that kills my back!
Week 16 Sheep Winner 
If you have a question about car / action / sports photography or Canon Cameras PM me...
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09-02-2010, 4:59pm
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The Devil Made Me Do It :)
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Join Date: 09 Jan 2008
Location: Glendale, Rockhampton, Qld
Queensland
Posts: 2,798
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Quote:
Originally Posted by Clubmanmc
hmmm let me think about it...
7D has twin Digic4 Processors, does 8 fps, and has 19 all cross type AF points... and that's just the stuff written on the box...
M
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100% View finder coverage, weather sealed body, rear control dial
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Smoke Alarms Save Lives, Install One Today I shoot Canon Cheers, Mark
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09-02-2010, 5:48pm
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Administrator (Site Owner)
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Join Date: 24 Jun 2007
Location: Hobart
Tasmania
Posts: 15,887
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Quote:
Originally Posted by broady
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Interesting first post, you have been a member for nearly 2 years. How about joining in a bit more?
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