keeny Member 62 posts Joined Jun 2005 More info | Jul 02, 2006 14:27 | #1 One of my many pastimes is Bird watching, which i use Binoculars for.
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blonde Buck Naked Floozies  8,405 posts Likes: 1 Joined Oct 2005 Location: Boston, MA More info | Jul 02, 2006 14:44 | #2 i am pretty sure it is close to 10x in bino terms. i also found this thread which might be of use to you:
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SkipD Cream of the Crop  20,476 posts Likes: 165 Joined Dec 2002 Location: Southeastern WI, USA More info | Jul 02, 2006 15:05 | #3 keeny wrote: One of my many pastimes is Bird watching, which i use Binoculars for. So now i want to photograph the birds i like.............well my question is this: what size would the Bigma be in Bino terms. Sorry if this has been covered before as i'm too dull to work it out. Cheer's Chris Depends on the camera format you are using... Skip Douglas
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GyRob Cream of the Crop 10,206 posts Likes: 1413 Joined Feb 2005 Location: N.E.LINCOLNSHIRE UK. More info | SkipD wrote: Depends on the camera format you are using... A "normal" lens for a 35mm film camera (and "full-frame DSLR's like the 5D) is approximately a 50mm lens. A "normal" lens for an APS-C format (like the 20D, 30D, the Digital Rebels, etc.) is approximately 31mm. To get the approximate "magnification ratio" - the number like 10X used for binocular magnification - divide the focal length by the "normal" lens focal length for the format. Example: For a "Bigma" set at 500mm, the magnification would be 10X on a 35mm film camera or 16.1X on a 20D. Dont leve it there what about the 1.3 crop "The LensMaster Gimbal"
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blonde Buck Naked Floozies 8,405 posts Likes: 1 Joined Oct 2005 Location: Boston, MA More info | Jul 02, 2006 15:13 | #5 1.3 crop= 13x
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SkipD Cream of the Crop 20,476 posts Likes: 165 Joined Dec 2002 Location: Southeastern WI, USA More info | blonde wrote: 1.3 crop= 13x Yep... Skip Douglas
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aericj Goldmember  1,240 posts Joined Sep 2003 Location: Louisville, K USA More info | Jul 02, 2006 15:48 | #7 I have a Bigma and a pair of 10X25's and I would have sworn the magnification was much higher on the bino's. However, I just made a comparison and they truly are about the same - doesn't appear to be 1.6X more on the Bigma but it could be. Canon Ti5 w/ 18-135 IS STM, 70-300 IS, 85 1.8
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Jul 02, 2006 16:11 | #8 Thank's for the info Guy's.
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 | x 1600 |
| y 1600 |
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