Zoom Images

[allison_cowen]

Does anyone know of a website that will show me samples of a subject in various

stages of zoom? That is, the same subject via 28mm lens, 50mm lens, etc.

 

Thanks very much.

[Ed_Ingold]

Most manufacturers, notably Nikon and Canon, have examples showing the field of view at various focal lengths. There is no difference between zoom and single-focus lenses in that regard, except the markings on a zoom barrel are not always accurate.

 

If you're looking for differences in sharpness and distortion (barrel/pincussion) and aberations, there are people on Photo.net with a passion for taking pictures of newspapers and resolution charts. The search function is your friend.

[m_barbu1]

Here's a generic one from Canon. It should be noted that different lenses will distort in different ways, and that this should be used as a rough estimate only.

 

<p><a href="http://www.usa.canon.com/app/html/EFLenses101/focal_length.html">http://www.usa.canon.com/app/html/EFLenses101/focal_length.html</a></p>

[justin_thornton1]

I have found a few comparisons in my readings

 

http://www.usa.canon.com/app/html/EFLenses101/focal_length.html

alterative...

http://www.usa.canon.com/html/eflenses/lens101/focallength/index.html

 

As mentioned above canon has one that covers focal lengths 15mm Fisheye, 20mm, 28mm, 35mm, 50mm, 85mm, 135mm, 200mm, 300mm, 400mm 600mm, and 1200mm.

 

http://web.canon.jp/Imaging/enjoydslr/p_2_013.html

This one not only shows you how the focal length changes the seen but how it changes the prospective. The focal lengths cover are 10mm, 17mm, 24mm, 35mm, 50mm, 70mm, 135mm, 200mm, and 300mm. Also, unlike the generic one above this is of a model about 4.5m (14ft 9in) away from the camera. I think its more useful for an idea of focal lengths. I believe all the photos are taken on a 1.6x Field of View camera such as the 30D. Really good comparison from Canon a lot of beginner information there too.

 

http://www.tamroneurope.com/flc.htm

Now this is a great one. It has a step-less zoom like slider from 11mm-500mm. Not only that it has the Field of view for both full frame/35mm film. In addition, you can select from the list of lenses and get a preview of what range each lens gives. However that not it! It comes with three different photos you can test with. Very good one from Tamron

If you like the tool you can download it from http://www.tamron.de/Focal_Length_Comparison.238.0.html?&L=2

You might also find Tamron?s depth of field comparison relevant. http://www.tamroneurope.com/dof.htm

 

http://images.blw.net/blw/focal_lengths/

It is a collection of photos that are at 10.5 mm fisheye, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 24 mm, 28 mm, 35 mm, 50 mm, 100 mm, 200 mm, 300 mm, 400 mm, 500 mm, And 1000mm.

 

http://www.luminous-landscape.com/tutorials/focal_lengths.shtml

This one is of a 6x6cm format but has the 35mm equivalent in yellow.

 

Sigma had one? but they either got rid of it or moved it...

 

Sorry I could not find one on Nikons website in my search. Though I do believe they have one somewhere?.

 

If you Google it you probably will find some more, but these are the ones I have found in my readings. I subject looking at prospective comparisons too because some times they seem to have focal length comparisons with them too.

 

Hope it helps and good luck shooting

 

ENjoy

Justin T.