December 22, 2014, 06:02:53 AM

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Topics - scyrene

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Third Party Manufacturers / iOptron SkyGuider
« on: November 29, 2014, 10:09:24 AM »
Hi guys.

Has anyone used one of these? (e.g. http://www.wexphotographic.com/buy-ioptron-skyguider-dslr-camera-mount/p1557710 ) It's the big brother to the Skytracker, which I have used a few times this year with good results. The one downside to the latter is its weight limit, which won't allow me to use my 500mm lens - which really limits my options with smaller subjects like the Pleiades, M31, etc. (and I've seen amazing shots taken with this lens of such things).

I'm thinking of selling my current tracker and moving up at some point. Any thoughts? I've avoided telescope guided mounts because they seem more complicated.

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Lenses / Focal lengths
« on: April 12, 2014, 05:59:35 PM »
Hey, I hope this hasn't been done before, and that it's okay to ask. Ever since I got into bird photography, there's been no such thing as too much focal length. So it often surprises me how short the longest lens other people use. Of course if you're not photographing small things far away, long lenses are of little use.

I recently got yet another teleconverter, and out of interest stacked them all for shots at 5600mm. It's not useable for most purposes but I was able to photograph surface features on Mars, and get detailed shots of the moon (image stacking being essential for both!).

Anyway, what's the longest focal length you've used? And if you want to comment, are you happy with that, or do you feel you need more reach?

(Standard 'length isn't everything' disclaimer).

3
EOS-M / EOS-M + MP-E macro setup
« on: January 02, 2014, 03:46:59 PM »
Hey all,

Forgive me if I'm duplicating anything, but I searched and found nothing on this topic. I've taken the plunge and ordered the EOS-M as the price is now right (£300 with 18-55 lens and EF adaptor, including rebate). One of the prime uses I'm hoping to put it to is as a macro camera, with the MP-E and 600EX-RT Speedlite (plus softbox recently). I've used these in combination successfully with the 5DIII, but the bulky body can make it awkward. I hand hold and usually use Live View for focus.

Does anyone else here use the MP-E with the EOS-M? Or shoot macro with it in general? Does anyone have any tips or observations that might be useful? For once, autofocus speed is not an issue :)

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