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KeithL
3rd August 2018, 03:21 PM
Did anyone get any Mars photos? I tried with my Oly, and it wouldn't let me! However, I did get some rough and ready ones with my Lumix. Rather shaky and out of focus, but they do show an orangey blob in a black sky.

Phill D
3rd August 2018, 03:23 PM
Feel free to post it Keith. I'm afraid I forgot to have a go. :(

KeithL
3rd August 2018, 03:28 PM
Here it is, in all its dubious glory!

http://e-group.uk.net/gallery/data/500/Mars.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/99897)


Bit fuzzy, but it does look round, and shows some shadowing. Might have another go tonight.

MJ224
3rd August 2018, 04:28 PM
Not bad at all....*chr

birdboy
3rd August 2018, 06:41 PM
What lens did you use efl 720mm? Planets are really difficult (no impossible) with DSLR lenses. Have you thought of using the video mode with this lens and stacking the resulting video frames. With a still this good I would think lucky imaging as it is called may work better. Not into this myself but worth a google.

Jim Ford
3rd August 2018, 08:48 PM
Bit fuzzy, but it does look round, and shows some shadowing. Might have another go tonight.

Do I detect a slight lightening at the South Pole, from the ice cap?

Jim

KeithL
3rd August 2018, 09:17 PM
What lens did you use efl 720mm? Planets are really difficult (no impossible) with DSLR lenses. Have you thought of using the video mode with this lens and stacking the resulting video frames. With a still this good I would think lucky imaging as it is called may work better. Not into this myself but worth a google.

I used my Lumix TZ60, which has a max 720 mm lens!

KeithL
3rd August 2018, 09:17 PM
Do I detect a slight lightening at the South Pole, from the ice cap?

Jim

Not sure. But it looks darker in the middle.

pandora
4th August 2018, 02:20 AM
The big Q is, now that a great resource of submaranian water has been discovered, how long before it's colonised? Unless it happens within the next 2 years I may not be around to see it, and how long will our Earth remain habitable is an even bigger Q.

wornish
4th August 2018, 07:06 AM
+1 for John said.

The only way to get any detail is to use video mode and stack many frames. Some people stack over a thousand (not a typo).

Its best to first use a free program called PIPP pre-align the frames and select the best quality ones, then stack the best of the best. You should get some detail using that approach.

Phill D
4th August 2018, 07:48 AM
Real details or not Keith I'd have been really chuffed with that shot. Might be clear here tonight so will hold off the vino for a while to see if I can have a go :)

KeithL
4th August 2018, 03:13 PM
+1 for John said.

The only way to get any detail is to use video mode and stack many frames. Some people stack over a thousand (not a typo).

Its best to first use a free program called PIPP pre-align the frames and select the best quality ones, then stack the best of the best. You should get some detail using that approach.

I'm not interested in doing that, Wornish. Too much messing about. I'm not an astral photographer, but occasionally I find it fun to have a go and get something like the admittedly fuzzy shot of Mars. it was handheld, against either the window or window frame, when I tried without the glass in between.

wornish
4th August 2018, 03:42 PM
I'm not interested in doing that, Wornish. Too much messing about. I'm not an astral photographer, but occasionally I find it fun to have a go and get something like the admittedly fuzzy shot of Mars. it was handheld, against either the window or window frame, when I tried without the glass in between.

I was simply pointing out that the best way to get more detail was to use video and trying to provide a simple guide of how to do it, didn't mean to upset you.
I know we don't agree on Brexit but this supposed to be a friendly forum, obviously not always *chr

KeithL
4th August 2018, 06:41 PM
I was simply pointing out that the best way to get more detail was to use video and trying to provide a simple guide of how to do it, didn't mean to upset you.
I know we don't agree on Brexit but this supposed to be a friendly forum, obviously not always *chr

Why do you think that what I wrote had anything to do with "being upset"? And indeed, Brexit? I was pointing out that I have no interest in image stacking or anything of similar ilk, nothing more, nothing less.

wornish
4th August 2018, 07:35 PM
Why do you think that what I wrote had anything to do with "being upset"? And indeed, Brexit? I was pointing out that I have no interest in image stacking or anything of similar ilk, nothing more, nothing less.

OK fine, glad to see we are still talking:)

Take pictures as you want, I was simply trying to be helpful - my bad (as they say). Just like to point out that I simply did a +1 to another post, yet you decided respond only to me, no comment about the original poster, John( I think).


Hmmm. end of discussion - have fun *chr

OM USer
5th August 2018, 04:27 PM
Here it is, in all its dubious glory!
...

Knocks my attempt into a cocked hat. I tried with the 40-150mm+1.4TC but its still a small dot. Then I tried with the 75-300. Finaly I used my OM fit Vivitar 100-500mm but focussing was a bit hit and miss. Might try again with the OM 1.4x or even switch to the 500mm mirror. Perhaps both 1.4x converters if I can stack them.

KeithL
6th August 2018, 03:36 PM
Knocks my attempt into a cocked hat. I tried with the 40-150mm+1.4TC but its still a small dot. Then I tried with the 75-300. Finaly I used my OM fit Vivitar 100-500mm but focussing was a bit hit and miss. Might try again with the OM 1.4x or even switch to the 500mm mirror. Perhaps both 1.4x converters if I can stack them.

My E-M1 wouldn't focus on it at all - refused to take the photo. It's so small, even with a long lens (50-200+conv) that I think the dot is too small to find when it tries to focus.

I have a 500mm manually focused lens (Paragon) but I have never found it very good, what I gained on the swings of lens power I lost on the roundabouts of sharpness (maybe inaccurate focus) . it'll be interesting to see how you get on.

BTW - i was going to try my Minox scope/camera combination. It's not easy to use and the results aren't very good, but it might work. Maybe if I could get a suitable adaptor for the M1 it could be useful for looking at Martians! :)

MikeOxon
6th August 2018, 04:42 PM
My E-M1 wouldn't focus on it at all - refused to take the photo. ..............


I find it essential to use manual focus. I view the image on the back screen and set the magnification of the image (in manual focus mode) to the maximum possible. The main problem then is keeping the image on screen - at this magnification, the rotation of the earth seems quite fast! With a bit of practice, you should be able to focus sharply on the image.


I was photographing Saturn last night (due South at around 10:15 pm) and managed crisp shots of the rings by using this method. I used an E-M1_ii with 100-400mm lens (at 400) and exposure (manual) of 1/100s@f/6.3 ISO 1600. I took about 100 shots at high-speed continuous (electronic shutter) and have yet to process the results through PIPP software.


I also use an Olympus EE-1 dot sight, which makes it very much easier to align onto a particular object in the sky.

OM USer
6th August 2018, 09:14 PM
100-500mm at 500mm F/8, OM 1.4x, OM-M43 adapter, M43 1.4x TC, Digital X2 TC. The optics were not really up to it at an overall 1000mm F/16. The digital TC was just an add on to get a bigger picture out of the end. This is the best I got. The 500 Mirror gave a lot of flare and was a lot more difficult to focus (relatively speaking as focussing was a big problem).

http://www.e-group.uk.net/gallery/data/2114/P8057884b2.jpg
Mars.

http://www.e-group.uk.net/gallery/data/2114/P8060002b2.jpg
My homemade focussing device was a simple wire frame bluetacked onto the hot shoe cover and lined up by pointing the camera at a distant security light.

The best shot of the evening was...

http://www.e-group.uk.net/gallery/data/2114/P8057905b2.jpg
The Plough in the constellation of Ursa Major.

MJ224
7th August 2018, 07:33 AM
https://farm2.staticflickr.com/1797/42995775225_5455697916.jpg (https://flic.kr/p/28voA2p)
Mars (https://flic.kr/p/28voA2p) by Mark Johnson (https://www.flickr.com/photos/133688957@N08/), on Flickr

1/2000th sec with the Pany 100-400 at full whack....

https://farm2.staticflickr.com/1772/28963682817_a20839e085_b.jpg (https://flic.kr/p/L8qrPF)
Mars (https://flic.kr/p/L8qrPF) by Mark Johnson (https://www.flickr.com/photos/133688957@N08/), on Flickr

1/30th sec with same lens/zoom as above.


Gonna have get the telescope out......*chr

Phill D
7th August 2018, 07:53 AM
These shots with just camera and lens look pretty good to me.
Would love to see what you got of Saturn Mike. I was dead chuffed last year when I got a shot (albeit rather fuzzy) with my telescope.

MikeOxon
7th August 2018, 02:30 PM
.........Would love to see what you got of Saturn Mike. I was dead chuffed last year when I got a shot (albeit rather fuzzy) with my telescope.


I've posted a single image in the Communal Night Sky thread, with an appeal to any mods that look in. Could you make the Night Sky thread sticky, please? *chr

MikeOxon
7th August 2018, 03:10 PM
Thanks John. I shall make sure that I wear jacket and tie next time I post :)

KeithL
11th August 2018, 04:32 PM
And you MUST NOT ride a Vespa with 500 lamps on the front! :D:D

KeithL
11th August 2018, 06:30 PM
Here's a thought! Has anyone out there tried taking photos through a rifle scope? Powerful modern ones, with laser reticles, are very good optically, bright and clear. You don't have to be as precise lining up the camera with the scope as a spotting scope; and the reticle would help to centre the camera. (After which you turn it off) Something like a 10-50x by 50 or 60 would be a pretty good device, and maybe useful for photographing astral bodies.

Any thoughts?

PS My scope is only 4 x 40, so not powerful enough.

Jim Ford
12th August 2018, 09:18 AM
Here's a thought! Has anyone out there tried taking photos through a rifle scope?

I don't think many people on this forum own a Barrett M82, Keith!

;)

Jim

KeithL
12th August 2018, 10:19 AM
I don't think many people on this forum own a Barrett M82, Keith!

;)

Jim

But someone may be able to borrow a scope to try. Air rifles can be fitted with quite powerful scopes, and .22 rimfire rifles can often be fitted with a scope of the power that I mentioned. Seriously, it was a thought that could work.

Jim Ford
12th August 2018, 09:38 PM
But someone may be able to borrow a scope to try. Air rifles can be fitted with quite powerful scopes, and .22 rimfire rifles can often be fitted with a scope of the power that I mentioned. Seriously, it was a thought that could work.

The eye relief on a telescopic sight is considerably greater than on a spotting scope, so the 'scope doesn't bury itself in your eyeball with the recoil! I'm not sure how it would affect focusing on a camera.

Jim

KeithL
13th August 2018, 11:10 AM
The eye relief on a telescopic sight is considerably greater than on a spotting scope, so the 'scope doesn't bury itself in your eyeball with the recoil! I'm not sure how it would affect focusing on a camera.

Jim

If your eye can focus on the image in a scope, so can a camera! If I can find the time, I'll try.

KeithL
13th August 2018, 02:28 PM
Well, I tried it this afternoon, just through the double glazing. The scope was set to focus around 10m away, but this may give an idea:

http://e-group.uk.net/gallery/data/500/scope_shot.jpg (http://e-group.uk.net/gallery/showphoto.php/photo/99957)

It certainly worked, just hand held, with no special arrangements. You do have to get the camera at the right distance to suit the eye relief; and reasonably centred, but it worked quite well. Looks quite reasonable magnification from a 4x scope, and using the maximum zoom of my compact camera. So it just might work for things like a shot of Mars.

Jim Ford
13th August 2018, 06:05 PM
Interesting. Is the image going to be bright enough?

Jim

KeithL
14th August 2018, 02:31 PM
Interesting. Is the image going to be bright enough?

Jim

Well, you can see the image through the scope compared to the view outside the scope. I would judge the aperture about f4-f5. Modern scopes of good quality (this is a Nikko Stirling) are very good optics. I think it would be more practical with a tube between camera and scope; and the eyepiece of the scope is adjustable for focus anyway, as is the objective.

wornish
14th August 2018, 03:09 PM
Fir those of you looking to do planetary imaging, this video gives you a few very useful tips.

Imaging Jupiter - Tips & When Seeing Goes Bad - YouTube

The first 17 minutes are worth watching. The guy is not using a DSLR but it shows whats possible using free software and a low resolution camera. The end result is about as good as you can get. Note: his scope has a focal length of 3910 mm so on shorter FL scopes the magnification won't be as great.

Just need the clouds to go away.