Originally posted by HoBykoYan Tak is not meant for me haha gone, nada, sold...
Am not confident enough with the 50-200 as well based from the reviews...
I guess I'm stucked with the M 75-150 and Pentacon 135.
@imd
I already have 50-55 focal and am happy with their performance...
Wait.
Wait for a good lens. You are in a studio. That is an enclosed room. You need a 50mm prime!
Using a 100mm lens:
If the studio is 20' long, and you and your subject are leaning against opposite walls, the longest diagonal length in the aps frame is less than 5.6 feet. With the camera turned at an angle, you could not get a full body shot of an adult, let alone any foot or head room. That is with you and your subject pressed up against opposite walls!
Using a 50mm lens:
In that same studio, at 8' camera to subject distance, your diagonal on the image is 4.6 feet. This allows a nice head and shoulders portrait with a little background above the head and some space for cropping. To get a full body shot, a distance of 15' will give you an 8.6' diagonal. That gives head and foot room in the image and some space for cropping. You still have 5' of space behind the camera and subject for backgrounds, hair lights, and breathing room.
I can't see how any lens longer than 50mm can be used in a 20' room for portraits. It is just trigonometry of the subject to camera distance and the focal length. You need to go 35mm if you have less than 15 feet of working room!