photo sharing and upload picture albums photo forums search pictures popular photos photography help login
Type your message and click Add Comment
It is best to login or register first but you may post as a guest.
Enter an optional name and contact email address. Name
Name Email
help private comment
Jacky Lee | profile | all galleries >> Camera Tests & Sample Pictures 相機測試及樣照圖片 >> Focal Length vs Sharpness tree view | thumbnails | slideshow

Camera & Lens Tests | Different Focus | Focal Length vs Angle of View | Focal Length vs Sharpness | Photoshop Tutorial | PS correction for overexposed image taken in raw format | Sample Pictures | Software Tests

Focal Length vs Sharpness

In my camera test for some of the top compact film cameras,

http://www.pbase.com/middlehill/contax_t3_vs_contax_g2g35_vs_leica_minilux_vs_minolta_tc1_test_1
http://www.pbase.com/middlehill/contax_t3_vs_contax_g2g35_vs_leica_minilux_vs_minolta_tc1_test_2

I receive some comments about the fairness of the test. What is suggested is that the longer the focal length, the better the sharpness. From this assumption, Minilux MUST be the winner in the tests because it has the longest focal length (40mm) when it is compared to Contax T3 (35mm) and Minolta TC-1 (28mm).

I do agree with this assumption to a certain degree, but is it REALLY true that a camera with a longer focal length must have a sharper image than that with a shorter focal length? The below test was therefore carried out aiming to find the relationship.

All the below pictures were taken with Canon EOS 5D. One zoom lens and two primes lens were used. All pictures were captured in RAW. Only resizing and levelling was applied to the images.

Let's see the results.
24mm
24mm
24mm cropped
24mm cropped
35mm
35mm
35mm cropped
35mm cropped
50mm
50mm
50mm cropped
50mm cropped
70mm
70mm
70mm cropped
70mm cropped
100mm
100mm
100mm cropped
100mm cropped
135mm
135mm
135mm cropped
135mm cropped
50/1.4
50/1.4
50/1.4 cropped
50/1.4 cropped
200/2.8L II
200/2.8L II
200/2.8L II cropped
200/2.8L II cropped
Tamron zoom lens comparison
Tamron zoom lens comparison
Canon primes lens comparison
Canon primes lens comparison