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Uranium235

Imaging with the Samyang 135mm f2

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Ohhh yes..... Its done. Pro job, and hopefully soon to be commecially available if there is enough interest:

 

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Oh btw, the tripod mount for the lens cost me something like 12 quid... amazon bargain...lol. It just needed padding out with some sticky back velcro and its pretty snug now. The whole arrangement is now simplified to screw fittings, and its rock solid.... no droop.

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On 14/10/2019 at 23:23, Adreneline said:

I am still interested please Rob.

Adrian

Im hoping to test it tonight, partially cloudy but thats close enough for me...lol..

Still not sure on the spacing, Ive left it 0.5mm short for the moment and will add delrin spacers if required.

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21 minutes ago, Uranium235 said:

Im hoping to test it tonight, partially cloudy but thats close enough for me...lol..

Still not sure on the spacing, Ive left it 0.5mm short for the moment and will add delrin spacers if required.

Hi 

Am I not right in saying it can be short as this would just allow the lens to focus past infinity

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2 hours ago, KyleStoke said:

Hi 

Am I not right in saying it can be short as this would just allow the lens to focus past infinity

Really, to get the best out of the lens you have to get the spacing to it focuses as close to infinity as possible. In the end ive had to add a whopping 4mm to the spacing to get it close (with a filter), without a filter it now focuses exactly on infinity.

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I bought mine from @geordie85 

Here she is on my widefield rig.  It is a special lens indeed.  My example is not so good at F2 or F2.8 though.  I shoot it at F4.  I may try again at F2.8 next week.

In fact, I prefer this type of AP above telescope AP now.  I love wide field nebulae.

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Mod seems to work alright :) slightly better spacing and more diligent focusing required (ie: 2/3rds focusing). But, for just two hours - it aint bad I guess :D

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But, to really test it I need to use the KAF8300 camera - and try and get the same performace Ive had previously.

Note to self: Get a finderscope....lol

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My 3D printed Sam+Evoguide universal holder is 90% ready.

Universal, as Asi1600mm with EFW or Canon will fit in.

Also, Autofocuser (10%) and it's holder is the process.

This toy will go on top of my 130PS or separate.

Took awhile to design and redesign ;)

Waiting for a clear night to test ;)

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