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On Thu, Jul 1, 2021 at 03:53 PM, Brian Valente wrote: > > >>> is this displayed in PHD Log viewer ? > > yes, do just be clear i'm talking about the components of the guiding, not > the?total guiding

The reason I ask is what I see in PHD Log viewer is, which says 0.76", so in my mind I now take 0.76/2.2as/px = 0.38pixels on the imaging camera, which is great I do see 0.5"/sec RA drift and 0.12"

yes, do just be clear i'm talking about the components of the guiding, not the total guiding rms If you have a perfect mount with 0 error, you are still limited by other conditions (seeing, wind,

Yeah I think I get what you are saying (not sure how you can tell the "wasn't guided out" error -- where does that come from ? If I have a 1" guide error then that will also be a 1" error In the

I own a G11 and am considering putting together a 6” f/10 doublet for imaging the sun. Very high frame rate (>100 FPS) lucky imaging. I would put this on a very stout pier. Has anyone done anything

this. Don't get focused on the ratios and pixel sizes. The point is your error is in arseconds. Your "wasn't guided out" error on your main PE is 1/4" your image scale is 2.2" per pixel. that means

Ah I think I see. Because my ratio of guide to image is about 3:1 then any error in the guider will be 1/3 in the imager so the 15” PE is more like 5 and the 0.7 RMS is approx 0.7/3 This makes total

Thanks Brian, that's awesome. Sorry for my naive questions - just trying to get a baseline before I put a lot of time into getting data Can you share how you came to those numbers ? I was very happy

Nick according to that 3 hour run, your primary PE is about 4.5" (removing corrections) after guiding, the residual of your primary error is about 0.25" Given your image scale, you are talking about

Guider is 6.45 as/px Main cam is 2.2 as/px

I agree it can be a chore (and the video description offers some tips on how to ease that) But if you mark it, you only really need to do it once. I like to set my weights and then pull the dec axis

Nick what is your imaging scale again? wrote: -- Brian Brian Valente portfolio brianvalentephotography.com <http://brianvalentephotography.com>

While ALT = 0 is probably the most accurate, this method can be a bit of a chore. Cranking the altitude knob downwards is fairly easy, but turning back up to your latitude setting takes some

And this is a 10min sub from that session (toward the end). The elongated stars mostly in the top right are from some tilt I am dealing with

Yeah, this one has about a 3 hr guiding session at the end that overall I am extremely happy with. It was at Dec = 60 though and on another forum, someone pointed out that if I repeated this at dec=0

Nick i think you are munging a few different things together here that may confuse things Do you have a guidelog segment that is at least 30 minutes of solid guiding (doesn't have to be low RMS, but

Apologies for the barrage of questions here. I ran unguided for around 20 mins at DEC=0 (basically went to PHD2 drift align and told the mount to slew to where it wants to do that) As others helped me

That makes sense Brian. If it does not impact tracking then I dont care. Tracking is the only thing I am really interested in getting the best out of. I can use the alt=0 trick easily if need be.

Nick, The wavy washer goes in between the RA clutch plates and helps separate them when the locks are untightened. Unless you are at the equator, the altitude your mount is set at will always cause

Hi Nick You only need to find balance once, so the ALT=0 trick is a good one the wavy washer can certainly help though it is totally unrelated to tracking wrote: -- Brian Brian Valente portfolio