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Astro modified DSLR
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17-05-2022 3:19pm#1
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fantastic id love to hear back RE results - Iv been using an E420 but upgraded to a D5100 - like you - no chance to try out on either of my scopes - I did some work over christmas and Jan/Feb with the 420 - i was quite happy with the results - especially considering the nature of my mount being quite old
Orion was my target of choice - good results for a Newbie but obviously only a FAINT hint of red - considering the camera is
- 4/3 Sensor - 10MP
- 15YO
- Unmodded
- the crop is unbelievable given the size of the sensor
- The iso is VERY POOR on the E420 - its still a fine camera for every day use- but put the iso above 200 and the noise is barely tolerable
- The tracking on my LXD75 is 5-10second TOPS - good for its age but poor overall when compared to a modern
- I have two gorgeous scopes but neither is fast - a 8" SCT F10 and a 6" Achro Refractor F8 - (really considering a F5 Newtonian or smaller refractor
Below is a quite modest UnStacked 5 Second exposure - happy for a first timer but poor, considering what i have seen elsewhere
Sic semper tyrannis - thus always to Tyrants
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That previous post was showing the red that is collected. It was stacked in DSS and then a touch of processing in Gimp. This next photo, (but stacked in Siril and then processed in Gimp), shows a different picture, but it is the same. Siril makes 3 images out of the one photo, so stacking 30 becomes 90 images in Siril. They are linear and are red, green, blue........then you have an option to look at it in autostretch mode. You can work on each colour frame in Siril before saving as a jpeg or whatever to then process in a photo app. Trouble is Siril uses a vast amount of space on your drive, between 20 + 40 gig, so I use a 2tb drive for it. As you see from my image I need much more data to get better pic, but I suppose I am just showing that using various software yields different results, and having great knowledge of photo manipulation is something I'm only really getting into, so my knowledge of it is limited.
I'm sure you know what I mean, but just talking for talking sake....lol.....I suppose someone at some stage may come across this thread and I am just clarifying the "more complete picture" of it all. Anyhow.....
Post edited by Silent Shrill on1 -
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Yea i mean i dont know where to start - fantastic results IMHO - im a total newbie myself - love my scopes but SO slow - iv spent a while considering either an F5 Newtonian - or maybe a more modern GOTO Tracker (or both!)
Can definitely see the Red bleeding out of the picture, distinct in areas - very impressive.
Iv had a very poor few nights myself - tracking on the LXD75 is aweful but location not ideal either - tend to have set up problems with achieving alignment (the inability of my tube to see through the newly constructed building next to my place!)
The d5100 is fine anyway - but when i went for something more exciting (the whirlpool galaxy) - the mount turned out to be a disaster - resolved spiral arms but motion blur ruined it completely
I had a shot at some globular clusters though -
It was a mitigated failure but at least i captured some usable images - 1st is Hercules Cluster, second M3 - third is Rose
modest to mediocre, but like i said - total newbie - im surprised i can picture anything identifiable (aside from the moon)
Sic semper tyrannis - thus always to Tyrants
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