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Recent content by aostling
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MM3 50mm
Frank, You cannot effectively restore blown jpeg highlights with post-processing. What is needed is an app which lets you record in RAW, and with exposure compensation. Here is one for the iPhone: http://petapixel.com/2013/03/22/digital-negative-app-lets-you-shoot-raw-photos-with-your-iphone/... -
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Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
You can look at the exit pupil of the eyepiece, and notice how small it gets when you zoom to 45X. This is why digiscoping is almost never successful at such extremes. The digiscoping calculator at Jay and Wanda will calculate the effective f-stop. If that is f11 or wider you can get a good... -
Opticron's new Travelscope
Your photo would win no accolades over on the digiscoping forum. The lack of fine detail is not surprising, considering that you were operating at 40X, which greatly reduces the exit pupil, and constrains the amount of information being passed to the camera sensor. I think you should try at... -
Opticron's new Travelscope
Such shots must be taken under conditions which will insure that vibration is not the cause of any perceived difference between images. A self-timer to delay the shutter release is a must. Here is an app which can do that: https://itunes.apple.com/us/app/self-timer/id346475986?mt=8 For that app... -
Opticron's new Travelscope
With its miniscule lens the iPhone would add a "weak link" to the combined optical system -- the spotting scope objective (a highly corrected triplet), the eyepiece, and your discerning eye. I think the digiscoping images would lack the image quality needed to uncover the subtle differences in... -
Opticron's new Travelscope
I don't think you should add an iPhone into the mix. -
Opticron's new Travelscope
Frank, That is wonderful. What is the soundtrack? -
Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
Nice to see that Jay and Wanda's calculator is working again. I entered the parameters for the MM3 60mm, and my Sony RX100 III at max zoom (70mm equiv). The combination is equivalent to a 1050mm f6.4 lens. As a comparison, the same camera on the MM3 50mm is equivalent to a 840mm f6.2 lens. So... -
Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
I don't understand Jerry's formula, which gives different results from jayandwanda.com. It is stated to be approximate, and does not calculate the f-number, which is as important as the effective focal length in judging the merits of a digiscoping set-up. -
Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
The importance of knowing the scope focal length lies in calculating the 35mm-equivalent focal length of the scope + camera combination. This is discussed in reply #244, here: http://www.birdforum.net/showthread.php?p=2970812#post2970812 Unfortunately the digiscoping calculator at... -
Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
From Pete Gamby's reply #241 in this thread: http://www.birdforum.net/showthread.php?p=2970812#post2970812 we are told that the focal length of the 40862 zoom eyepiece is 8mm to 24mm. At reply #243 we have that the focal length of the scope is calculated as (magnification)(eyepiece focal... -
Opticron Mighty Midget 3 MM3 60, yes I mean MM3 60 not 50
A link would be helpful.