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Old Dec 29, 2006, 3:51 PM   #1
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Hand held at 500mm (750 mm EQ)
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Old Dec 29, 2006, 3:54 PM   #2
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Great Shots...Hand held...I can't even hold the camera still with no lens!!!Lol
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Old Dec 29, 2006, 4:03 PM   #3
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Thanks... It really helps to have good lighting (Living/shootingin the Mojave 'High-Desert' at 3,000' elevation and clean airreally helps!) and a good digi/lens combo w/a modicum amount of technique derived from a few thousand image attempts...:-)
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Old Dec 29, 2006, 4:06 PM   #4
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I tired a Pidgeon on the roof of my house the other day...There was nothing else about...That was Blurry!!!! 30ft away
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Old Dec 29, 2006, 6:19 PM   #5
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Good handhelds with that Bigma. What would you estimate the distance at?
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Old Dec 29, 2006, 7:41 PM   #6
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Telecorder as usual your photos are SUPERDUPPERTASTIC.

TOTALLY WACKY roger
FZ 30, Nikon TCE17, QuikAim Max RDS, Zeiss Digiscope/Sony W7


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Old Jan 2, 2007, 5:58 PM   #7
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VP wrote:
Quote:
Good handhelds with that Bigma. What would you estimate the distance at?
Thanks!

Sorry for the delay... I shot a few 500mm Bigmaimages at 20', 40' and 50' at a tape measure today to see if I could discern any math ratio that might assist in estimating distances to a subject. As best as I can estimate, assuming the RTH is ~20" tall and the post is a 4" x 4", it would appear from the original 3008 x 2000 image that I was ~100' away from the subject for this image...



FWIW, the vertical 2000 pixels of the Bigma's 500mm at f/6.3 measured out at:

20' = ~8.1875"

40' = ~15.75"

50' = ~20"

Using a factor of ~1.92x for doubling the distance (15.75/8.1875=~1.92X); the apparent FOV relative to the RTH's ~20" & the 4x4 gives the original image's ~36" vertical FOV thus indicating ~100' distance (20" x 1.92X ratio factor = 38.4")

One of these days I'll spendmore time to put some dimensional targets at 50, 100, 200, 300 etc out to 500' and take some images on a tripod to get a 'cheat sheet' for later guesstimating subject distances... another item for my nice to do/have list...:roll:

Hey, TWR... This would be a good project for you to try out with the FZ30 using both the EZ modes and the TCON-17...:G
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