tasheeya

1 hour ago, calli said:

That rough estimate is enough to make me try again with my D5100 Thanks!

 

Carsten

please check here. you will need all the details for them.

http://www.astronomyforum.net/astrophotography-forum/197165-few-stuff-taken-my-kit-lens.html

http://www.astronomyforum.net/astrophotography-forum/197850-m8-m20-sigma-50-500mm-lens.html

http://www.astronomyforum.net/astrophotography-forum/156345-eta-carina-nebula-ngc3372-widefield.html

3 hours ago, calli said:

Wow, ist that D5100 astro modified? Never seen so much red with them. How many subs/@what time?

Carsten

thanks. no its not. all images are less than 1 hour of data. between 5min and 45min. subs are between 8sec and 30sec. i can search my data and give exact details if you want.

all of these except for the last one taken with a nexstar GT mount bought from ebay for 70$.  most of these are few years old. now i have a good setup but this is how i started and fell in love with this hobby.

55-300mm lens + D5100, eta carinae

55-300mm lens + D5100, lagoon+trifid

50-500mm tamron + D5100, lagoon

50-500mm tamron + D5100, omega centauri
 

6" newtonian + D5100, orion

55-300mm + D5100, rosette

55-300mm + D5100

50-500mm + D5100, trifid

55-300mm + D5100, orion

tripod, D5300, 50mm prime, southern sky

cheap 58mm uv/it cut filter for my 55-300mm nikkor lens so i can use it with my astro modded (full spectrum mod) DSLR.

3 hours ago, mikey2000 said:

Just a quick update - I tried again on the last clear night.  the Dec Backlash is a lot less than yours.  I spent a few mins making sure the scope was well balanced in dec before this run.

 

thank you for checking it again. my setup was bit imaging side heavy when checking it.

i may try this tutorial on DEC to reduce some backlash, its for EQ6 but heard that its almost the same for EQ6-R as well http://www.astro-baby.com/EQ6 rebuild guide/EQ6 worm alignment.htm

anyone tried this or similar method?

48 minutes ago, Stub Mandrel said:

Sorry, PHD2 log viewer doesn't show that so I can't compare to my results.

My intuition is that (a) 4700ms is very high but (b) the 'you may need to guide in only one dec direction' messge is often pessimistic.

ok thanks. PHD logs don't have GA results i think.

my payload is 18kg/40lb ( 10" Newtonian and accessories), i have tested things for two nights and it seems to guide well. I'm getting 0.6"-0.7" total RMS without doing anything extra like PPEC/tuning and can get 15min subs with perfect round stars so ill just leave this as it is for now.

On 26/12/2018 at 20:44, tasheeya said:

i have few other questions too if you guys don't mind.

1) home position marker. i was using an AVX and it had those marks for dec and RA clearly but EQ6-R pro don't have them in both sides. i know this is not very important but its usable when aligning the mount. is there a way to add marks accurately than using a rough position?

2) when aligning the mount and when we need to select a certain 2nd or 3rd star, we need to use bottom arrow keys to get it and most of the time its displaying "searching.."  and its time consuming. sometimes its showing that for 10-15sec. is this normal? I have some trees and buildings covering my view so need to select stars to align.

 

On 26/12/2018 at 20:51, tasheeya said:

Is this declination backlash is normal or not? It was 25,000+ms on AVX so i know that its way better than AVX.

 

anyone?

Is this declination backlash is normal or not? It was 25,000+ms on AVX so i know that its way better than AVX.

i have few other questions too if you guys don't mind.

1) home position marker. i was using an AVX and it had those marks for dec and RA clearly but EQ6-R pro don't have them in both sides. i know this is not very important but its usable when aligning the mount. is there a way to add marks accurately than using a rough position?

2) when aligning the mount and when we need to select a certain 2nd or 3rd star, we need to use bottom arrow keys to get it and most of the time its displaying "searching.."  and its time consuming. sometimes its showing that for 10-15sec. is this normal? I have some trees and buildings covering my view so need to select stars to align.

On 25/12/2018 at 13:28, Merlin66 said:

To be honest the easiest way is a small strip of Gaffa tape over the bubble tube - and ignore it.

Don’t worry too much it’s not critical......

 

On 25/12/2018 at 14:37, Miguel1983 said:

Hi, mine is wrong to, i use a smal Stanley Fatmaxx level to level the tripod, but there are mixed opinions of how important leveling your tripod is.

the only downside i find is that you always need to remove the mount from the tripod to level it first.

On 25/12/2018 at 14:45, Cornelius Varley said:

 

Equatorial mounts don't need to be perfectly level to function correctly. Just use the bubble level to get the tripod somewhere near level.

looks like a common issue ? mine is completely off so the bubble level is not usable. I'm using the mount without extending legs so that's giving a normal level in a flat surface. I'm using a bubble level app in phone when I'm not sure about the surface.

Hi guys i have recently bought the mount, its inbuilt bubble level readings are wrong. anyone have this issue? anyway to calibrate it?