Rush

True , about autofocuser. but you can find a way around. Filterwheel is not a problem , the one i use s quiet heavy still it doesnt tilt in any direction. Two brackets comes with a Vixen style D.tail and the guidescope clamp acts as a reinforcement. Maybe on the reinforcement some modification to attach the A.focuser?

Use a LP filter screwd infront of the lens , works fine. Dithering is a must for DSLR,s. to reduce noise. B 4 u print out bracket/ holder, buy from Phillipe in France. http://www.astrokraken.fr/samyang-135mm-f-2-c30078976, well made , i use it. hope this helps. This will provide you more time for PDS Collimation?135mm f:2 bracket + micro-focuser Par astrokraken le 2 Juillet 2018 à 00:33 This bracket allows to mount your Samyang 135 f:2 telephoto lens on an equatorial mount for astrophotography. A hinged micro-focuser ring has been mounted on the lens, to fine

1000% . Shot with Sony A7 and Samyang , around 15 frames @ 300s iso 800. Cone N, with SBIG ST 8300 M . R & G ,3 frames @ 300s, B 6 frames @ 300s, Ha 12 frames @ 600s. Rosette N , same as above. Cheers

This lens is always a pleasure to use, great performance and handling is uncomplicated. Sometimes i use in combination with Asahi Takumar 135 mm for HaLRGB. Cs Rush

Swear i cant blame the drawtube or the eyepeace holder as Cheshire CT is held by a ring holder (no thumb screws) I wish too u r not right, it was hours when all this began, slowly its turning into days ?

Well , finally the hour of truth has come. i.e the Cheshire CT from TS with CONCENTER tool test. Everything i left untouched from previous tweaking (laser show) And here s the View through Cheshire CT. Through Concenter tool, Wonder if i ever will get those rings aligned with primary to secondary and vice versa cos of the offset ? An an image after the previous laser tweak. The halo around the bright star is gleaming . Primary edges need tuning ? paint it rough black ? Next adventure ? Thanx much CS, Rush 2 hrs L and 1 hr RGB with the prvious laser tweak test. Bright star core light streaks around. Sorry if its dirty crude processed , red gradient kill next time after serious extrem imaging:)

Battle with F5 is the same as F4 .some screws are ill fitting and kind of small , thats all . Internet offers wisdom of lightnig speed, can make even Plumbers rocket scientist with few clicks. God,dont mean to under rate a plumbers intelligence. Some r bible long and totally sense twisted these articles. Create a sense of scariness to touch the secondary or the scope itself. To be honest there s nothing so really very complicated with this mirror and few Chinese screws . Kind of exaggerated this dont touch it propoganda. Most of them are crude made and kind of simple. This F4 mirror is glued with double side adhesive tape for carpets and home appliances i guess. While washing mirror i was cautious not to wet it. Using dew straps around and overheating can make loose the adhesive tape (who knows) Primary too needs cleaning, so after mastering offset secondary lesson move on to the next mystic myth:) Meantime waiting for the Cheshire CT, with collimation cap got the secondary round as possible. Barlowed (2XBarlow) the laser and adjusted the secondary doughnut on the laser window screen. This is where im now, View through the d.tube Barlowed laser and secondary doughnut on the laser window. Test shot on NGC 3187 and co inspired by Mr Alacante Ordered one TS Concenter along with Cheshire CT. lets see what a Concenter ( magic tool ) does. Sorry , if i wrote too much. Thanx 4 reading:) CS

Thank you for the warm welcome to the crucial warfields?, ordred a long handle from TS . Meanwhile continue with my self made collimating cap . Read so many articles on collimating , can sing collimaion blues in C. Cs Rush PS : this scope was send by a gentle person from UK to Germany. Plus me giving a hot bath to the secondary made it all worse.?

Well Well, Thank you great people for the precise detailed explanations and helping spirits. Right now Im walking the front line of secondary collimating battlefield, but reaching somewhere near the shimmering winning path?. I don’t have a Ceshire C T., but have only a self made primitive collimating cap with which I used to collimate my old GSO Newton. But this Quattro beast is quiet weird as all the primary screws are extrem sensitive and the Offset secondary. Here is bahtinov focus test which looks promising. Will update my progression, Thanks to all, great week end, CS Rush

Star test looks like this, Cs

Hi , apologise if im gatecrashing i do have a simmilar issue, i.e when i look through the cap, Reflection shows, a left bootom clip and the top one , focuser and the 3rd clip refelection on the right is missing. What should i do from this point ? any advice will be helpful. thanx man, CS Rush

Flexure issue was prominent when i moved the Guide Scope away from the mount center . G.Scope ,rings and the base plate adds extra weight, tension on top of the main scope ,front heavyness too. Watch the PHD graph and the corner stars in the image . If stars r round you can leave it as it is. I avoid dew heater plugging in the hub where the imaging camera s plugged. Happy testing & success:) Rush

Guidescope more to the mount Center (in case of guiding error) Looks nice,too perfect to be real ?. If u see my wire jungle you will breakdown and cry? Cheers Rush

Core and continum looks like this.

No worries, We r all here to help?. (Man, every time I think I've got everything under control, something else pops up!) Same old story happens at regular intervals. Usb hubs and usb ports start playing game too.? Lum looks like this.

Suspect its comming from the Cali Frames. try only with darks and see if its the same. Looks as if those flats too are not matching. Cs Rush

Yes, dont adjust anything in DSS. Grab the 16bit Tiff file and do the rest in Gimp. Split the RGB channels clean it up and recombine them using layers. Mask stars and ROI and increase saturation softly. Red channel you can strech and use as Lum , Dont remeber lighten or Screen mode in layers. Opacity sliders you can use to your personal likes. Im not capable of using Gimp or PS effecient.. Long back tried PS and gave up. Might be someothers around here who can help you . Sorry. Rush

If u detail your workflow, will be easy 2 figure out. Yes i use a dedicated astro Image processing soaftware called PIXINSIGHT.

Eventhrough light polution star colours are still visible. reselect the bad frames and stack again, dont touch the stauration sliders in DSS. Well, apologise if i tuned it a bit too far ?. Cheers Rush

I scrolled up and saw your pictures - weird thing is I'm pretty sure I saw them earlier LOL! Don't know what I was talking about when I said I couldn't see them ? Sorry ? No worries ,u dont need 2 be sorry. Since astronomers do things n the dark, weird things happen quiet often.? Those pictures you posted are stunning - I'd love to see skies like that. Dark site hunting is a side effect of night sky addiction. ? Im glad u like them. One frac is the Altair 60EDF for imaging and the other is a Altair 50mm guide scope ? R u using a DSLR or CCD cam ? Use a Reducer/Flattner with Altair 60EDF. I've had a lot of fun over the past week with the SA - some struggles tonight (posted elsewhere here) with a dew shield but it made me laugh ?. Struggles , Cable USB horror, Mosquito Draculas pretty much a never ending story of this hobby. Some say in Pain begins the Pleasure?. cheers Rush

Thanx 4 the flowers??? and im realy glad u like it. Cs Rush

Hi David, If u mean picture of the set up, its up there. ( please do Scroll up, 6 pictures from yours) The blueness of that sky makes me remember of KALAHARI desert stinging cold nights. I can see the outlines of two fracs ( 60 or 71 mm) on Your SA. SA does a good job with widefield optics. its a nice grab and go set up. Hope u like it. Clear skies and Cheers Rush

All systems go for another night of imaging with the Star Adventurer - this time guided - on M45 ? Looks like a crispy chilly promising night advancing. Hope it stayed for a while ?

Thanx Man. Phew..........it works too ?. cheers Rush

Addicted to sky? CS Rush .