Canon's 5200mm Mirror Lens

getjustin

#1 – 9:41 AM February 6, 2008

What are the practical applications for something like this?? 18-32 miles? Wouldn't the curvature of the earth become a factor if you were shooting from ground level?

mdhatter

#2 – 10:08 AM February 6, 2008

How big is the flash?!?

Goose22

#3 – 10:27 AM February 6, 2008

WANT! My Canon AE-1 would fit that nicely...

jordawesome

#4 – 10:34 AM February 6, 2008

#1, I was thinking the same thing. I could see it being used for photographing things leaving or coming back to earth perhaps.

I just did some math, (which may in fact be totally wrong,) but with the 36 minute field of view, a 1.3m (diagonal) object at 120 m would fill the 35 mm frame.

And if it's mounting is anything like the 2000 mm lens on the previous page, it would be _so_ easy to hide on a rooftop and spy on people. Not conspicuous at all.

dculberson

#5 – 10:39 AM February 6, 2008

It's a reflector telescope with a camera mount on the eyepiece!

Jai

#6 – 10:50 AM February 6, 2008

#5 seriously! I was thinking the same thing.

adam

#7 – 11:23 AM February 6, 2008

@3; Yea!

WANT WANT WANT for Nikon mount!

Matthew Walton

#8 – 11:40 AM February 6, 2008

Astronomy is the obvious use. Bet you could take some nice pictures of the moon with that.

Anonymous Anonymous

#9 – 11:51 AM February 6, 2008

@ #2:

The flash is here: https://www.llnl.gov/str/October02/Dane.html

Songe

#10 – 12:35 PM February 6, 2008

That's nothing. A mirror lens is basically a telescope, and out of focus points of light turn into donuts. This might have been on BB before:

The Zeiss Apo Sonnar T* 4/1700 - f4, 1700mm lens. Designed for 6x6. Observe the size of the Hasselblad on the end:

http://www.zeiss.com/c12567a8003b58b9/Contents-Frame/8baac109cb80bddfc12571e100393a1b

Made for a wealthy middle eastern client. Conventional lens. Huge glass elements. Very heavy. Very NASA.

bardfinn

#11 – 12:37 PM February 6, 2008

#9: But does it make popcorn?

mralistair

#12 – 1:26 PM February 6, 2008

isn't it easier to just move a bit closer?

Songe

#13 – 3:16 PM February 6, 2008

I think the length of the lens prevents you from moving closer.

padrevic

#14 – 7:37 AM February 7, 2008

#10 I like the guy PS'd in on the left side of that photo.

winkybb

#15 – 4:25 PM February 7, 2008

Any camera/lens can take photos of objects 18 to 32 miles away. I don't get what they're trying to say there.

cha0tic

#16 – 7:04 PM February 7, 2008

The Canon is 'only' 100kg. The Zeiss 256. I'll take the Canon please.

Anonymous Anonymous

#17 – 1:32 PM May 19, 2008

The curvature of the earth does come into play with this. You would have to be at least 3 stories up to see 32 miles with this because at ground level the horizon is approx 3 miles away.

Anonymous Anonymous

#18 – 10:27 AM September 5, 2008

"No, just a little step back... no, just one more..."

Anonymous Anonymous

#19 – 6:26 PM April 23, 2009

DO WANT!

Anonymous Anonymous

#20 – 10:56 PM September 1, 2009

Dang, I wonder if it takes the 2x extender well?