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461 ExcellentAbout spaceman_spiff
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Proto Star
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Astronomy; Astrophotography; Computational Neuroscience; Horology; Classical music; Hiking; Jogging, PS4!!!
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Bury, Lancashire
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Mounting a long telephoto lens
spaceman_spiff replied to spaceman_spiff's topic in Discussions - Scopes / Whole setups
Hopefully when I have fitted the lens to the mount I can run some comparisons between the premium camera lens and my Esprit 100. -
Mounting a long telephoto lens
spaceman_spiff replied to spaceman_spiff's topic in Discussions - Scopes / Whole setups
Great! I just ordered the 18cm Astro essentials dovetail bar from FLO. I have some spare bolts so and they should fit into the recess on the underside of the bar! -
Mounting a long telephoto lens
spaceman_spiff replied to spaceman_spiff's topic in Discussions - Scopes / Whole setups
Ok I think the medium vixen bar will not quite fit the holes on the lens so instead I will get the shorter 18cm bar. It has slots instead of holes so should be easy to fit! -
Mounting a long telephoto lens
spaceman_spiff replied to spaceman_spiff's topic in Discussions - Scopes / Whole setups
Hi @Skipper BillyI just measured the screw holes in the foot of the mount...looks like they are separated by 3.6cm, shorter than my long vixen dovetail. Hi there @Philip R do you know if the two holes in the medium Vixen dovetail match with the mounting foot (separated by 3.6cm)? Thanks for all your help! -
Mounting a long telephoto lens
spaceman_spiff replied to spaceman_spiff's topic in Discussions - Scopes / Whole setups
Thanks for the replies, I do have a spare vixen dovetail and I can run a screw through one of the holes but the spacing is different on the lens foot so I can only get one screw in. I may have to drill a new hole through the dovetail bar to get this to work... -
spaceman_spiff started following Show Us Your Historic Star Maps and Mounting a long telephoto lens
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Hi there everyone, I was recently loaned a long telephoto lens (Canon EF 500mm F4), it's a fantastic lens and I really want to do some AP with it but I am not sure what's the best way to mount it. I have a AZ EQ6 mount with an ADM Side-by-side bar which accepts both Vixen and Losmandy dovetails. Does anyone know of a solution. Here's a couple of photos: The mounting bar currently attached to the lens foot is too wide for a Vixen attachment bar and too narrow for a Losmandy. Thanks everyone Dan
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Nice result! I got a similar view with my Skymax 150. I want to go out again soon and capture the crescent thinning! Dan
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Imaging Session Timelapse
spaceman_spiff replied to SyedT's topic in Imaging - Widefield, Special Events and Comets
Really good timelapse, nicely done. Interesting when the street light turns off you see the sky glow and then the flood light turns on next door; sort of a rock and a hard place. Even so, your sky looks great overhead. -
Really nice view! Nicely done.
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The light hitting my camera was almost half a billion years old! Quite unbelievable really...
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There is a very faint elliptical galaxy just below and to the right of the star I labelled...it could be that.
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Interesting...Thanks for the reply Waddensky. 6.3% of NGC objects are single stars or not locatable! That's a lot!
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I almost forgot I had this one. Its a copy of the 'New Popular Star Atlas' from 1974.