1200MM 47 Inch lens!

[gleaf]

Americans don't take the blame for anything...
German measles, Hong Kong flu... always blaming others it seems.....
Now as pointed out... credit we will always take.

 

[Steve Smith]

Well, he is wrong. It's 47.2441 inches.

Or 1193.8mm


Steve.

 

[E. von Hoegh]

Or 1193.8mm


Steve.

So it's two focal lengths in one!! Remarkable!

 

[Thomas Bertilsson]

So it's two focal lengths in one!! Remarkable!

Convertible.

 

[E. von Hoegh]

Convertible.

Yes, but the focal lengths are only 6.2mm - less than a quarter inch - apart. That's just over half a percent.

 

[Thomas Bertilsson]

Yes, but the focal lengths are only 6.2mm - less than a quarter inch - apart. That's just over half a percent.

Still...

 

[nateo200]

Any update with the lens? I really would like to see a self propelled 40x40 ULF field camera, I'd be willing to stea-- I mean borrow a golf cart . Seriously though, that would be really really cool!

 

[TheToadMen]

Simple as dirt. Place a 5x achromatic loupe at the focal point of the lens and you'll have a 23.5x telescope. Use a 10x (1") loupe and you'll get 47x, the focal length of the eypeice lens divided into the objective lens give you the magnification. Of course, you also have two doublets with focal lengths of 96" or so....

And don't look into the sun - not even by accident !!!

Bert from Holland
http://thetoadmen.blogspot.nl

 

[goamules]

Any update with the lens? I really would like to see a self propelled 40x40 ULF field camera, I'd be willing to stea-- I mean borrow a golf cart . Seriously though, that would be really really cool!

I still have the lens (and another Mammoth), but am still looking for a suitable camera. I hope to one or both of them this year, if I can make or buy a camera.