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Old 31st of January 2009 (Sat)   #1
louroberto
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Default distance for a 300mm lens...

Was wondering what a good distance in feet should the bird I am shooting be away before it is too far for a 300 mm lens. Thanks!
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Old 31st of January 2009 (Sat)   #2
canonloader
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Default Re: distance for a 300mm lens...

About 25 feet is too far for a small bird, just right for a goose. If you use a 50D and are willing to crop heavy, maybe 50-60 feet. But don't fall for the old trap that if you get a 500mm you can sit on the porch and shoot titmice down by the river. even with a 500/4 shooting chickadees, you have to be within 30 feet or so unless you want to crop.
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Old 31st of January 2009 (Sat)   #3
louroberto
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Default Re: distance for a 300mm lens...

Thank you for the response. I will try both no cropping and cropping. Thank you
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Old 1st of February 2009 (Sun)   #4
chauncey
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Default Re: distance for a 300mm lens...

A 300mm lens has a field of view of about 5 degrees.

Get a protractor and draw a 5 degree angle and, in your mind, project that out to your target distance.
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Old 3rd of February 2009 (Tue)   #5
gasrocks
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Default Re: distance for a 300mm lens...

Why don't you ask the question : I can get within ______ feet of a bird that is ____" tall. What lens do I need to fill the frame? I think that would be more useful knowledge. Looking at my chart I hand out in my Wild Bird Photography class (yes, send me an e-mail and I'll send you a copy): 300mm (on a 1.6x crop camera) - 60 feet = 3 foot tall bird fills the vert. of the horiz. frame.
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Old 3rd of February 2009 (Tue)   #6
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Default Re: distance for a 300mm lens...

It took a guy from Wisconsin to do the math.
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Old 12th of February 2009 (Thu)   #7
Rich S
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Default Re: distance for a 300mm lens...

These eagles were 1200-1500ft away. I thought I would try with my 50D to get something. BIGGGG crop, but I at least got this to show. We don't get them here much....Rich
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Old 12th of February 2009 (Thu)   #8
Rich S
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Default Re: distance for a 300mm lens...

Red-Tailed Hawk Canon 50D 300mm f/4l IS 1/2000 sec f/5.6 ISO 320 75ft....
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Old 12th of February 2009 (Thu)   #9
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Default Re: distance for a 300mm lens...

I was too close for this guy(25 ft). When he took off I lost him in the frame. The 50D crop 1.6x makes lenses reach better. When I use my5D I rarely get as good results...
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