I added two files

https://we.tl/t-xKvdVqKhlW

https://we.tl/t-VVTdSAcHSR

marktownley wrote: ↑Sat Jun 03, 2023 5:43 am How hot is it outside when you are imaging?

it's very hot, but I also photographed in full summer with better results

8/9 frame @ 85% istogram ,even less, I was usually at about 20 frames

Hi, Just a simple tip. Put Gain at 0 and then adjust your speed to get 95% on the live histogram and process these SER files ... Stretching the histogram too much gives you immediately noise ... Why do you insist in fast exposure time. IMHO in White light you will see no difference after stacking ....

rsfoto wrote: ↑Fri Jun 02, 2023 7:07 pm Hi,

Would you share a ser file to look at it and play with it?

they are huge files and i don't know how to share them

they were processed on the fly but I'm not satisfied at all, before even a coarse processing gave better results, in the second I closed the blacks too much

the exposure time is about 8ms (if I remember correctly) and even more to have a histogram above 70% I usually stack 150 200 frames, but seeing that those above average were smaller, I also dropped to less than 100, in addition to the astrosolar I use a uv/ircut and a 540nm baader. Always Ser>Tiff u...

I don't know if this is the right chat Too much noise I'm fine-tuning the 80/1000 f12.5 refractor. I can't go down with the gain to have acceptable times, I always have to work at over 200 with the 1600mm and 20 with the 120mm, I'm using an astrosolar photo. Do you have any idea why, given that befo...

I think I have some collimation problem with the 80/1000 refractor, last night I adjusted the focuser a bit, it's completely off axis
I'm still fine-tuning everything, a shot this morning 540nm baader latest version

a lot of noise

Done

I live in Rome and I'm practically in the centre, my terrace faces east and I can take pictures on average until 12 am, often the best photos come out by 10.30/11.30 am, after which the seeing degrades. in summer the terrace becomes a furnace, and if you wet the ground a lot of steam rises. sometime...

I removed a part of the noise and with a flat defects

shooting time
but in your opinion which time is better to take the shots

without grid

other tests I'm waiting for the Herschel prism, I have to remove the astrosolar filter, my gain is too high and I think it creates artifacts... but I'm not sure however this photo was taken through the grid 80/1000 asi1600mm barlowTV 2.5X (this works great) 540nm filter and uvir baader 80.jpeg 2023-...

I always get confused… at the top you mean near the sensor or the telescope? My doubt is, can a filter immediately after the sensor worsen the performance of the powermate or telecentric in general?

i have the new version of the uv/ircut filter. I can mount the 1.25 filter directly on the nose of the camera … camera-filter540-barlowtv2x-uv/ir-herschel filter…

always shots of this morning, a FD, I changed processing, I'm back with autostakkert and I used waveSharp and PS a color version and a BW kenko 80/1000 asi1600mm Pro Shutter=2.8ms Gain=132 Sensor temperature=10.0°C continuum baader 1.25 7nm uv/ir baader 2" 2023-05-23-0830_9-U-L-Sun_lapl4_ap7534...

this morning the sky is much better, I did some tests, with and without irvcut, if I remove the iruvcut filter the photo is very blurry, this is the result of a "good" shot 80/1000 asi1600mm Pro Shutter=2.8ms Gain=132 Sensor temperature=10.0°C continuum baader 1.25 7nm uv/ir baader 2"...

in WL with astrosolar, in front of the 540nm filter do I have to use a uv/ir filter? is the Baader filter suitable or do I have to use one in particular

under development, some testing but nothing special Old kenko 80/1000

I managed to reassemble the telescope after three weeks, I didn't have time to clean the dust and there are several defects. 80/1000 asi1600mm Pro Shutter=5.000ms Gain=187 (31%) Sensor temperature=10.0°C bad quality 2x barlow continuum baader 1.25 7nm uvir baader 2" and natural haze filter .......

These thoughts come when you've been locked inside the house under a cloudy and rainy sky for a month... I understood that it's all a game of diameter, f and length. I ordered a herschel apm, and after a 430nm filter and surely I will have to close the aperture of my refractor and I thought a mechan...

Do you think this diaphragm for lamps might work for telescopes

After many posts read and as many calculations made, I can say I'm still confused :) Based on the formula (2000*pixel*diameter)/freq, with my 80/1000 I'm always out of sample I created a table with the focal values in WL for 393/440 frequencies, which from what I understand are the most useful ones ...