Big lenses

[table1349]

Will this do? $1.9 Million Leica O-Series Is the World's Most Expensive Camera | Popular Photography
It sold for 1.9 million.

 

[unpopular]

Sweet. Now some rich old dude can take upskirts with his $1.9m camera.

That is what Leicas are for, right? Contax is for real photographers, Leicas are for pervy old men. Clearly, there are more pervy old men.

Uber-Rare Nikon 6mm Fisheye Lens on eBay Can See Behind Itself

 

[table1349]

I can already tell that derrel is making a cartoon of himself with that rare, expensive leica.

 

[EDL]

Or is it envy? I loooove my 100-400

It's not the focal length that matters, it's the depth of field.

It's not how big your lens is, it's how you use it....;-)

 

[Manita]

When you want to shooting sports wildlife , action scene that all require long focal lengths . If you want a fast lens then you can use long focal length a big lenses which can help you to give a big response and a perfect picture quality. A big lenses camera you can use if you want best results for photography. Actually many spots and wildlife photographers use big lenses for their great shots.

 

[unpopular]

I'd love it if spammers would actually post something useful. I mean "big lenses are good for sports" .... Really!

 

[480sparky42 42]

I'd love it if spammers would actually post something useful. I mean "big lenses are good for sports" .... Really!

They're also good for board games!

 

[Gavjenks]

f stop is a ratio of aperture diameter and focal length. All other things equal, a 200mm lens at f/2.8 needs to be about 4x larger than a 50mm lens at f/2.8.

Complex lenses like zooms, heavily corrected lenses, ultra wide angle rectilinear lenses, and retrofocus (a design used for focal lengths wider than the distance between the sensor and the mount, i.e. roughly <50mm) also have more glass to accomplish some of the weird things they do and to compensate for the amount that bounces away in the midst of 15-20 different complex elements.

And yes, as the OP suggests, full frame lenses with equal specifications to a crop frame lens will also be larger, to cover a larger sensor in back. That's definitely one of the main contributors.








From the small amount of experience I have designing some of my own lenses and mucking around for many hours in simulator programs, the above three factors all seem to have a similar influence on lens size.

 

[unpopular]

... anyway

 

[480sparky42 42]

Pffft. 500mm is for little kids. Go big or go home.

 

[Vince.1551]

I seriously think I need to get my ass back to the gym before I attempt to use any of these bazookas and canons lol

 

[table1349]

I'm still waiting for someone to match my 5200mm. :waiting:

 

[Gavjenks]

I'm still waiting for someone to match my 5200mm. :waiting:

K

Canon 5200mm f/14

 

[Gavjenks]

Or a 16,200mm lens:


Or a 57,000mm lens (REFRACTIVE too, unlike the above one) that projects straight into a live theater:
http://en.wikipedia.org/wiki/Great_Paris_Exhibition_Telescope_of_1900

 

[IronMaskDuval]

131.4 meters I win