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Bloodmoon 21-Jan-2019
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PostPosted: Fri Jan 25, 2019 5:40 am    Post subject: Bloodmoon 21-Jan-2019 Reply with quote

Taken 21-Jan-2019 5:41h CET with Tamron SP 8/500mm + Zeiss 2x converter on Panasonic GH4



Got rather noisy as I had to raise ISO quite a bit, f16 certainly not being at help... Wink


Last edited by kds315* on Sat Jan 26, 2019 5:43 am; edited 3 times in total


PostPosted: Fri Jan 25, 2019 10:15 am    Post subject: Reply with quote

Anyhow interesting!


PostPosted: Fri Jan 25, 2019 11:32 am    Post subject: Reply with quote

I used two lenses to capture this, the Tele-Tokina 800mm/8 and the Jupiter 6-2 180mm/2.8
Unfortunately the circumstances changed rather quickly and dramatically during the eclipse and by the time it was full, I had to deal with ground fog that took away the light.
I even changed my location (away from the lake shore) to avoid the fog but it quickly catched up with me.
However I still was very happy with the end result, so I'm content to wait for 2025 to get the next one....Cool

The Tele-Tokina 800mm/8


The Jupiter 6-2 180mm/2.8


Tele-Tokina 800mm f16 on Sony A7III (clear sky)

Tele-Tokina 800mm f16 on Sony A7III (ground fog setting in)

Tele-Tokina 800mm f16 on Sony A7III (ground fog thickening)

Jupiter 6-2 180mm f11 on Sony A7III (clear sky)

Jupiter 6-2 180mm f11 on Sony A7III (clear sky)


Last edited by Marcel B on Sat Jan 26, 2019 11:15 am; edited 1 time in total


PostPosted: Fri Jan 25, 2019 1:27 pm    Post subject: Reply with quote

Nice shots Marcel! Guess I better change title as your shots were not done
with a Tamron 500mm mirror lens... Wink


PostPosted: Fri Jan 25, 2019 2:39 pm    Post subject: Reply with quote

Oops, sorry Klaus didn't intend to steal your topic.
I'm a bit rusty in netetiquette I guess. Laughing


PostPosted: Fri Jan 25, 2019 3:29 pm    Post subject: Re: Bloodmoon 21-Jan-2018 Reply with quote

kds315* wrote:
Taken 21-Jan-2018 5:41h CET with Tamron SP 8/500mm + Zeiss 2x converter on Panasonic GH4



Got rather noisy as I had to raise ISO quite a bit, f16 certainly not being at help... Wink


2018?

Super Blood Wolf Moon was in 2019.


PostPosted: Fri Jan 25, 2019 3:40 pm    Post subject: Reply with quote

Well done!


PostPosted: Fri Jan 25, 2019 7:29 pm    Post subject: Reply with quote

Wow marcel. The ultimate preset t-mount lens the 800mm tokina. I just sold a 600mm before xmas, but I have pretty much never seen the 800mm. One day..
Good results there Like 1 small

I was in the garden at 5am gmt trying to use my recently acquired pentax 150-450mm + sigma apo 1.4x tc (so no af - wouldn't have been enough light for af anyway). Clearly the trick is to get focus while there is a good bit of moon to see and focus on. I was trying to shoot - review on lcd - microadjust but didn't get anything sharp - lots of orange blobs. I was wondering too if a 1 sec shutter was too slow too to prevent motion blur from the moons motion across the sky.
Should have done some homework beforehand...

Sample effort (quick pp in faststone).


PostPosted: Sat Jan 26, 2019 12:38 am    Post subject: Reply with quote

Tamron 60B + 01F, 8 frame median stack



PostPosted: Sat Jan 26, 2019 5:44 am    Post subject: Re: Bloodmoon 21-Jan-2018 Reply with quote

visualopsins wrote:
kds315* wrote:
Taken 21-Jan-2018 5:41h CET with Tamron SP 8/500mm + Zeiss 2x converter on Panasonic GH4



Got rather noisy as I had to raise ISO quite a bit, f16 certainly not being at help... Wink


2018?

Super Blood Wolf Moon was in 2019.


Rolling Eyes Rolling Eyes Rolling Eyes thanks, corrected it!! Rolling Eyes Rolling Eyes Rolling Eyes


PostPosted: Sat Jan 26, 2019 5:52 am    Post subject: Reply with quote

marcusBMG wrote:
Wow marcel. The ultimate preset t-mount lens the 800mm tokina. I just sold a 600mm before xmas, but I have pretty much never seen the 800mm. One day..
Good results there Like 1 small

I was in the garden at 5am gmt trying to use my recently acquired pentax 150-450mm + sigma apo 1.4x tc (so no af - wouldn't have been enough light for af anyway). Clearly the trick is to get focus while there is a good bit of moon to see and focus on. I was trying to shoot - review on lcd - microadjust but didn't get anything sharp - lots of orange blobs. I was wondering too if a 1 sec shutter was too slow too to prevent motion blur from the moons motion across the sky.
Should have done some homework beforehand...


Yep, at those long focal lengths, the moon moves rather quickly thgrough the viewfinder and I had to re-adjust the positions constantly, as I have no telescope terrestrial mount!!

One second is certainly waaay too long so what you got is lots of motion blur!

Here is a calculator for moon photography:
http://xjubier.free.fr/en/site_pages/astronomy/MoonExposureCalculator.html

And here even one especially for Lunar Eclipses:
http://xjubier.free.fr/en/site_pages/LunarEclipseExposure.html


Honestly, I just found those, I have tried by trial and error and ended up at about 1/4 - 1/6 seconds and ISO1600
to get rid of motion blur as I had 1000mm focal length in use.


PostPosted: Sat Jan 26, 2019 5:57 am    Post subject: Reply with quote

Mike Deep wrote:
Tamron 60B + 01F, 8 frame median stack



Very well done Mike! Do you mind me asking which exposure time and ISO you used?


PostPosted: Sat Jan 26, 2019 1:51 pm    Post subject: Reply with quote

Good links Klaus thanks - next time ...
I was on 1 or 2 secs, pretty much in the right ballpark based on those calculators for exposure, but as you said, should have been around 1/5th for motion prevent.
If I had looked into it more I would have figured out the astrotracer that - just realised - I have built in to my K3-II !!


PostPosted: Sat Jan 26, 2019 2:11 pm    Post subject: Reply with quote

marcusBMG wrote:
Good links Klaus thanks - next time ...
I was on 1 or 2 secs, pretty much in the right ballpark based on those calculators for exposure, but as you said, should have been around 1/5th for motion prevent.
If I had looked into it more I would have figured out the astrotracer that - just realised - I have built in to my K3-II !!


Like 1 Laugh 1 Like 1


PostPosted: Sat Jan 26, 2019 7:49 pm    Post subject: Reply with quote

Canon FD 400mm f/2.8 plus 1.4x Extender A on Sony A7, single image, cropped (ISO 640, 0.4 second)



PostPosted: Sun Jan 27, 2019 8:10 am    Post subject: Reply with quote

dickb wrote:
Canon FD 400mm f/2.8 plus 1.4x Extender A on Sony A7, single image, cropped (ISO 640, 0.4 second)


Well done Dick! I looked at it and it has a lot of potential for further processing!!


PostPosted: Sun Jan 27, 2019 8:55 am    Post subject: Reply with quote

Mine Smile
#1


PostPosted: Sun Jan 27, 2019 9:53 am    Post subject: Reply with quote

kds315* wrote:
dickb wrote:
Canon FD 400mm f/2.8 plus 1.4x Extender A on Sony A7, single image, cropped (ISO 640, 0.4 second)


Well done Dick! I looked at it and it has a lot of potential for further processing!!


Thanks. Yes, I've been a bit lazy on the postprocessing side..


PostPosted: Sun Jan 27, 2019 8:49 pm    Post subject: Reply with quote

kds315* wrote:
Very well done Mike! Do you mind me asking which exposure time and ISO you used?


1. 1/4 f8 ISO12800
2. 0.5 f8 ISO6400
3. 0.4 f8 ISO6400
4. 0.4 f8 ISO12800
5. 0.4 f8 ISO12800
6. 1/4 f8 ISO12800
7. 1/4 f8 ISO12800
8. 1/4 f8 ISO12800