 BetterPhoto Member |
15 mm Lens VS 35 mm to 15 mm Converter I've seen that there is a converter for the standard 35 mm lens of the Nikonos V which makes it work like a 15 mm or 16 mm lens. Does anybody know what are the technical differences between using this converter and the 15 mm lens itself?. Why would someone spend 5 times the cost of the first one to purchase a whole lens?
|
|
|
|
||
|
John A. Lind |
Mariano, The "converter" you write about is also known as an "auxiliary lens." While these types of lenses can be a cost effective method for occasional use, the combination of a prime with an aux. lens does not have the optical quality of a prime lens. An aux. lens introduces additional glass elements in front of the prime resulting in reduced contrast, greater risk of flare and loss of some resolution. There is typically some introduction of aberration also. Depending on the designs of the prime and the aux. lens, they may or may not work very well together, especially with aberrations and resolution. A "super-wide" or "fisheye" aux. lens also reduces the lens speed. An aux. lens "matched" for use with a specific prime(s) usually works better than a "generic" one. Good images can be made using one if it is matched well with the prime it is put in front of. Compared to a super-wide prime, it is a compromise which will limit how much enlargement you can achieve in your prints, and a slower lens speed will limit how low a light level you can shoot in. -- John
|
|
|
|
||
|
This old forum is now archived. Use improved Forum here
Report this Thread |
||