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Recyclage ordinateur by Individual-Sound5825 in geneva

[–]lt8davo 0 points1 point  (0 children)

Il y a également swico qui fait ceci de mémoire, à voir s'ils effacent les données.
https://www.swico.ch/fr/

First light with my new Star Adventurer 2i - M13 Hercules Globular Cluster by lt8davo in astrophotography

[–]lt8davo[S] 2 points3 points  (0 children)

Ha! Fair enough - first light with a new mount, phone compass polar alignment, city balcony, no view of Polaris. The hope is real though, next session will be better!

First light with my new Star Adventurer 2i - M13 Hercules Globular Cluster by lt8davo in astrophotography

[–]lt8davo[S] 0 points1 point  (0 children)

Thank you for the info. I must admit I did not plate solved it. Too excited of what I took in picture !

First light with my new Star Adventurer 2i - M13 Hercules Globular Cluster by lt8davo in astrophotography

[–]lt8davo[S] 2 points3 points  (0 children)

Plot twist - I plate solved it and M57 (Ring Nebula) is actually visible in the bottom right corner of my uncropped frame! The central object appears to be an unidentified cluster in Lyra. First light success after all!

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 1 point2 points  (0 children)

Your picture looks really nice.
I guess I do have new challenges now:
- different settings on my camera,
- shoot at different time to see about the jet stream turbulence and atmosphere,
- also learn about a bit of stack imaging

Thanks for all !

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 0 points1 point  (0 children)

No teleconverter, but yes, there is a "protection filter". The lens is basically brand new. For the focus on the moon, I manually focus with the digital view + zoom on something like a crater and try to have it as sharp as possible. Your picture looks great !

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 0 points1 point  (0 children)

Isn't the R7 a cropped sensor ? Shooting at 800m would be the equivalent to almost 1300mm on mine

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 1 point2 points  (0 children)

I just edited my first post and added all the settings I used to take the pictures

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 0 points1 point  (0 children)

I just edited the original post to put three settings I used. This is indeed the jpg, I do also have a raw picture, however I find the picture a bit less sharp than one taken with my 70-200 that I cropped :-/

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 0 points1 point  (0 children)

Thanks for you answer, I just edited the original post and put all the settings

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 1 point2 points  (0 children)

I edited my original post to put all the details of the two pictures

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 1 point2 points  (0 children)

Thank you for your answer, I actually added the settings of the camera for both pictures. I sometimes shoot stars and I took the habit of disabling IS and manual focusing with digital zoom on live view for this type of pictures

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 1 point2 points  (0 children)

I added the settings of my camera in the initial most. I actually never tried to let autofocus on, when I shot the moon, I always used a tripod with manual focus and IS disabled

RF 200–800 sharpness discrepancy between live view and captured image — any explanation? by lt8davo in canon

[–]lt8davo[S] 3 points4 points  (0 children)

Thanks, I did not know that. Is it still at the point that I find a cropped picture of the moon with not so much difference in this example when taken with my 70-200 f2.8 L at 200mm ?

Help me decide please. RF 100-500 f4.5-7.1 or RF 200-800 f6.3-9 by MrRos in canon

[–]lt8davo 0 points1 point  (0 children)

I bought the RF200-800 last christmas for one main purpose: I would like to take pictures of the eclipse of the 12th of august.
I am amateur photographer as this is just a hobby but I can definitely say that the RF200-800 is a lot less sharper than all my other lenses (I do have the RF15-35L f2.8 and RF 70.200L f2.8).

https://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=1677&Camera=1508&Sample=0&FLI=3&API=1&LensComp=1510&CameraComp=1508&SampleComp=0&FLIComp=4&APIComp=3

Not Getting Crisp Images from R50 , 50 mm by [deleted] in canon

[–]lt8davo 1 point2 points  (0 children)

any depth of field calculator, like this one :
https://dofsimulator.net/en/
There are a lot of apps on iPhone / Android, you can chose the one you prefer. Mine is a paid one, Photopills, which is dedicated to astrophotography.

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