iwols

does pixel size alter quality

thanks craig .what is the qhy version please

hi just having a switch in cameras and just wondered which of these 3 you would recommend for planetary imaging on a c8 edge,using a 178mc at the minute but this needs to go back in my all sky camera,or any other ccd recommended thanks 

just using my asi 178 mc colour for something else, can anyone suggest another model that would do similar,cheaper the better thanks

good luck👍

any use?

https://www.cloudynights.com/topic/760292-zwo-eaf-double-beep-stop/

No i havent have you tried contacting zwo,also try a new setup on a different laptop computer apart from that dont have any suggestions,sorry

whats a good roi to capture 640 or 1280? and does it effect quality

3 hours ago, astroman001 said:

Craig is spot on with the focusing technique, it's what I do as well. Also notice an improvement in feature contrast at best focus.

An electric focuser is a must, you will be fortunate to find focus with the telescope focuser, too much vibration when you touch it.

Peter

using the zwo eaf great piece of kit

5 hours ago, CraigT82 said:

I personally always focus on the planet itself. I set the ROI and the zoom in a little bit on the preview screen. Then I switch the preview debayer on as I find it easier to focus on the colour image preview. Then I use the auto align function in firecapture to hold the image steady in the preview and then finally i'll run the focuser back and forth repeatedly, going through the focus zone multiple times trying to judge the point of critical focus.

I'll look at the details on the planet and try to judge when they are focused as sharply as possible. Often this isn't quite at the same point where the limb of the planet appears sharpest (no idea why this should be - maybe its my eyes playing tricks on me) but I always focus of the details on the disc, rather than the limb. 

Often it takes me a good 5 mins at least of running back and forth through the focus point before I'll decide on where the best focus is. 

I've never used a bhatinov mask or any other focus aids, including the edge/contrast /fwhm detection aids in firecapture. Always done it by eyeing up the detail visible in the screen. 

On Jupiter if the seeing is so bad I can barely make out the surface details on the preview, I'll move over to one of the Galillean moons instead and focus one of those until it's as small as I can make it before moving back to the planet. 

Anyways that's how I do it, might not work for you but maybe you could give it a try and see if it helps or not. 

thanks craig excellent explanation,cant wait to try again

focused with  bhatinov on a star ,then made slight adjustments when on jupiter craig

thanks Geoff👍

Thanks Pems ,i actually captured 2000 frames and used 50% to stack,cant remember what my frame rate was but from what i can remember about 20 secs but not sure,will try as you suggest,thanks for the advice  just expected the original video to be better👍

stayed up late last night ,got focus and tracking bang on,even tried my adc ,but original capture poor.screenshot of capture and final process ,used sharpcap,as3 and registax 

2000 5ms frames any advice appreciated .C8 edge and asi178mc ccd ,thanks

can a i use a cheshire to collimate my c8 edge during the day thanks

Trouble is my pc is in the House and only have a USB connection but thanks

Hi all any recommendations for usb please 

Plus 1 for the belt mod, made a massive difference to my heq5 as well as improved tracking

Havent used my finderscope much as i have mainly used plate solving as ive been into dso,but now i am trying planetary its easier with the finderscope,im using it on my c8 edge remotely at the bottom of my garden,unfortunately my finderscope isnt great i think its the stock one that came with my c8,i find it moves if caught very easily at its the one with the o ring at the front and a couple of adjustable screws at the back.I was looking at the Explore Scientific 8 x 50 90° PolarFinder & Amici Prism,just a couple of questions

1..are these more solid/adjustable than my stock celestron one

2..is it possible to add a camera so i get the same view as i would looking through the finderscope

3..would it fit my edge

any comments suggestions really appreciated thanks

thanks for the detailed explanation Vlaiv  👍

I know 5ms is recommended, but is there much to gain at say 3 or 4 ms

thanks vlaiv

what would the average capture length be to get better quality? thanks

And without your help I wouldnt have got this thanks

Thanks, appreciated looks a lot better I know the detail is missing would this come with more imaging time like I say I was just happy with any capture