Quote:
Originally Posted by Merlin66
As the distance from the lens in the barlow to the eyepiece (or camera) changes, so does the magnification. If you use an additional spacer to hold your camera the magnification could, say, go from x2.5 to x3.5....whereas with a powermate the magnification would remain the same ie x2.5
HTH
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I'm hoping someone can explain this... Given the following:
1)
http://www.televue.com/images/TV3_im...ncrease_sm.jpg
2)
http://www.astro-nut.com/lunar-03feb09a.html
Quote:
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Originally Posted by Last Line from the page
This image is from a single one-second ISO 100, 48-bit image that was taken on 09-Feb-2003 with an 8" Mak-Newt and Canon D60 digital SLR through a stacked pair of TeleVue Powermates (2x and 4x).
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The last statement indicates that the lunar image was taken via stacked Powermates (2X & 4X). Can you take the chart from 1) and sum the magnifications for each Power mate (i.e. is the resulting image 6X)?
If so, wouldn't it best to have a 2X/2.5X and a 5X for "maximum" flexibility? If so, top surface from each to the next Powermate or as a total system?
OIC!