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Framing the moon at 2263 mm with Live View

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liquidstone

liquidstone

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The moon was about 51 -53% last night, and at a focal length of around 2263 mm, it almost fully filled the frame of the 40D. Live View makes it easier, not only to focus manually and tame mirror slap, but more importantly to keeping the moon within the center of the frame. The clearances of the moon from the edges of the frame are narrow, and at 2263 mm, the subject moves quite fast (though still slow enough to be reasonably frozen by 1/25 sec shutter speed).

The canvas (black BG) was as shot.... untouched/uncropped except resizing the photo to 50%, i.e. there was no need to reposition the subject in the frame.



Processed 100% crop:

http://www.pbase.com/liquidstone/image/104282389

Regards,

--
Romy



PHILIPPINE WILD BIRDS
http://www.pbase.com/liquidstone
http://www.romyocon.blogspot.com/
http://birdphotoph.proboards107.com
(Over 250 species captured in habitat, and counting.)
 
Amazing shot. The detail is astonishing!
 
Mmmmm.....Cheese. :)

Nice image, thanks for sharing! Looks really sharp considering the two stacked TCs.

Good support must be key?

I did some eclipse with a meager 70-200 2.8 and 1.4 TC and live view was such a great help (40D)

Bob

--
http://www.greatschatz.com
 
Or do they move to fast?

Gorgeous shot as always.
 
--

That is one pretty good shot of the moon you took! You caught it when the light was just right highlighting all those craters! I've don't ever recall seeing a moon pic that showed it had been bombarded so much to make all those craters! Man it must have been one heck of a time millions of years ago when all this debri was flying hurling through space and crashing into it. Amazing. Thanks for sharing it. I saved it to my PC! :-)
 
schatz said:
Mmmmm.....Cheese. :)

Nice image, thanks for sharing! Looks really sharp considering the
two stacked TCs.

Good support must be key?

I did some eclipse with a meager 70-200 2.8 and 1.4 TC and live view
was such a great help (40D)
Click to expand...
Thanks Bob, I used the cheap combo of Manfrotto 475B tripod + 3421 gimbal head.

Aside from good support, glass and long lens technique, "seeing conditions" are also very important.

--
Romy



PHILIPPINE WILD BIRDS
http://www.pbase.com/liquidstone
http://www.romyocon.blogspot.com/
http://birdphotoph.proboards107.com
(Over 250 species captured in habitat, and counting.)
 
Just, W O W. I'm speechless.

--
CAN0N 5oD/EFS17-55 f2.8 IS/EF7O-2OOf4L IS/EF85 f1.8/EFS18-200 IS
CAN0N VIXIA HF1OO
CAN0N P0WERSH0T SX1OIS
CASI0 EX-VEE8
PANAS0NIC TIZZY5 & LX-3
PENTAXX 0PTI0 W1O
 
I'm just speechless!!

Give this man a 50D and let's see a 15Mp image of the moon! If he keeps this up, he'll be posting Tranquility base whilst the rest of us are still trying to perfect the whole moon.

I would have thought that clarity would only happen with a dedicated telescope and a T mount.
--
The Aussie Viking
 
why do you state 2263mms, when 800x2x1.4 = 2240?

Don't ya just hate pedants!

Just ignore me and keep up the great work! The best I can do is only 1120 & this is a bit wobbly on my tripod - I am surprised you could get away with such slow shutters for Jupiter and Saturn, I was expecting more blur.

Kind regards
Stephen
 
That is awsome! The only other place I see photos that good is on space.com
 
Thanks, Stephen.... you're not wrong on the math, it's just that I tend to be a bit too exact based on my engineering background. :)

2x TC = 2.00x (2 stops of light)
1.4x TC = square root of 2 = 1.4142136.... x (1 stop of light)

Hence, focal length = (800 mm) (2.00) (sqr 2.00) = 2262.74 mm, rounded off to 2263 mm.

All of my "exactness" of course hardly matters, as the Sigmonster might not even be 800 mm at full zoom to start with. :)
bed bug said:
why do you state 2263mms, when 800x2x1.4 = 2240?

Don't ya just hate pedants!

Just ignore me and keep up the great work! The best I can do is only
1120 & this is a bit wobbly on my tripod - I am surprised you could
get away with such slow shutters for Jupiter and Saturn, I was
expecting more blur.

Kind regards
Stephen
--
Click to expand...
--
Romy



PHILIPPINE WILD BIRDS
http://www.pbase.com/liquidstone
http://www.romyocon.blogspot.com/
http://birdphotoph.proboards107.com
(Over 250 species captured in habitat, and counting.)
 
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