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  1. #1
    Join Date
    Aug 2007
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    34

    Canon xsi - not focusing in low light..

    I'm having a issue with the camera focusing in low light. I tried similar shots with my Canon SD850 IS and it seems to focus the shots.. I'm confused.. I'm using the kit lens on program mode, without the flash.. thanks for your help.

  2. #2
    Join Date
    Dec 2006
    Location
    God's Country - Australia
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    if the xsi is anthing like the xti, it doesnt have an AF assist lamp. you need to raise the flash which acts as your AF assist in low light.
    D800e l V3 l AW1 l 16-35 l 35 l 50 l 85 l 105 l EM1 l 7.5 l 12-40 l 14 l 17 l 25 l 45 l 60 l 75
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  3. #3
    Join Date
    Jun 2005
    Location
    Sydney, Australia
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    Yep....what Rooz said.

    You may need a "faster" lens than the kit lens.....or use the "strobe" light that the built-in flash can provide.
    Canon 5D MKlll & Canon 50D
    Canon 70-200mm f/2.8L USM | Canon EF-S 17-55mm f/2.8 IS USM | Canon EF-S 10-22mm f/3.5-4.5 USM | Canon 100mm f/2.8 USM Macro | Canon 70-300mm f/4-5.6 IS USM | Canon 50mm f/1.8 | Sigma 17-70mm f/2.8-4.5 | Canon 430EX Flash | Lowepro Mini Trekker AW | Lowepro Toploader 65 AW | Lowepro Slingshot 200AW | Kata 3n1-10

    Panasonic Lumix FZ200
    Panasonic Lumix TZ7 (aka ZS3)
    Panasonic Lumix FT3 (aka TS3)

    Ali Baba.....the Thief of Bad Gags

  4. #4
    Join Date
    Dec 2004
    Location
    Los Angeles, CA
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    3,109
    Or you can use a Canon Speedlite which has the option for infrared (well not really since you can see it but it looks red to the eye) focus assist, which is way less intense than the seizure-inducing strobe effect of the on-camera flash assist mode...
    Canon A720 IS, 40D w/ BG-E2N, 28 1.8, 50 1.4, Sigma 70 2.8 macro, 17-40 F4 L, 24-105 F4 L IS, 70-200 F4 L IS, 430 EX, Kenko 2X TC & Ext Tubes, AB strobes and more...
    View my photo galleries here: imageevent.com/24peter

  5. #5
    Join Date
    Jul 2005
    Posts
    8,163
    Or you can go old skool with a D30 or D60, both of which have a proper assist lamp.
    Ouch.

  6. #6
    Join Date
    Mar 2005
    Location
    NYC
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    4,498
    Or, you could change your handle to something less obnoxious than "PhotoMaster".
    Some Gear: Nikon D700; Nikkor AF-S 50 f/1.4 G; Nikkor AF-S 24-85 3.f/5-4.5 G ED; Tamron 28-300 f/3.5-6.3 VC; Nikon SB-800; Velbon Maxi-F; Canon Pixma Pro 9000; Canon S3IS, Canon SD500; Epson 4990; Epson P5000; Wacom Intuos 3

    Main Software: Capture NX2; Adobe PhotoShop CS2; Corel Paintshop Pro X2 Ultimate

    Sold: Canon XT/350D, EF 24-105mm f/4 L IS, EF 100mm f/2.8 Macro; EF-S 10-22mm f/3.5-4.5, Sigma 18-200 OS; Canon ET EF 25II; Kenko Pro 300 DG, Canon 430EX, Canon BG-E3.

  7. #7
    Join Date
    Jun 2007
    Location
    Dubai, UAE
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    Or we could swap camera's as mine has 'built in' low light sensor (after market mods)....
    Film
    Nikon EM, Series E lenses 50mm f1.8|28mm f1.8|100mm f2.8, Sigma 80-200mm f4.5-5.6
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    Digital
    Sony cybershot W90, cybershot T90
    Canon A720i|400D|7D|5DMKII|85mm f1.8|24-105mm f4|135mm f2|40mm f2.8|430EX II*2|BG-E3|BG-E7
    Sigma 24mm f1.8|50mm f2.8|105mm f2.8 Samyang 8mm fisheye
    Portfolio

  8. #8
    Join Date
    Jun 2005
    Location
    Sydney, Australia
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    1,680
    Quote Originally Posted by 24Peter View Post
    Or you can use a Canon Speedlite which has the option for infrared (well not really since you can see it but it looks red to the eye) focus assist, which is way less intense than the seizure-inducing strobe effect of the on-camera flash assist mode...
    Best option....although, using this option (and the option of internal strobe), means you will be taking a "flash" shot....which may not be what you are after.

    In the case of the internal strobe option (no cost), the strobe attracts too much attention and you lose any candid opportunities.

    At least with the external flash (cost), the infrared is a little more subtle.
    Last edited by Honest Gaza; 04-28-2008 at 05:35 PM.
    Canon 5D MKlll & Canon 50D
    Canon 70-200mm f/2.8L USM | Canon EF-S 17-55mm f/2.8 IS USM | Canon EF-S 10-22mm f/3.5-4.5 USM | Canon 100mm f/2.8 USM Macro | Canon 70-300mm f/4-5.6 IS USM | Canon 50mm f/1.8 | Sigma 17-70mm f/2.8-4.5 | Canon 430EX Flash | Lowepro Mini Trekker AW | Lowepro Toploader 65 AW | Lowepro Slingshot 200AW | Kata 3n1-10

    Panasonic Lumix FZ200
    Panasonic Lumix TZ7 (aka ZS3)
    Panasonic Lumix FT3 (aka TS3)

    Ali Baba.....the Thief of Bad Gags

  9. #9
    Join Date
    Jul 2004
    Location
    Formerly South Wales. Now South Carolina.
    Posts
    7,147
    Hmm... Didn't think it was a great lot better than the XT

  10. #10
    Join Date
    Jul 2005
    Posts
    8,163
    Quote Originally Posted by Honest Gaza View Post
    Best option....although, using this option (and the option of internal strobe), means you will be taking a "flash" shot....which may not be what you are after.
    You can set the flash not to fire while still lighting up the AF-assist beam in Custom Functions on the camera body.
    Ouch.

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