James Markus wrote:
Scott,
Though I stayed at the wide end - I couldn't get decent focus at any setting in IR with my copy of the 25-50mm f4. However, on a normal full spectrum camera it is very sharp?
Jim
spoupard wrote:
I tested my new to me 25-50 f4 on my IR converted Z50. I would say that, as wonderful as this lens is, it isn't very good for IR photography, at least at the short focal lengths. Zoomed to 50mm and it was pretty good, but any shorter and it produced horrific hot spots. These were all shot at 50mm.
Yes, Jim, on a regular camera it is a great lens. It is very sharp, but still retains that vintage lens character. I used it on my Z5 with great results. Here is a link to my post with a couple of test shots with this lens: https://www.fredmiranda.com/forum/topic/929565/1737#16058798
James Markus wrote:
Scott,
Though I stayed at the wide end - I couldn't get decent focus at any setting in IR with my copy of the 25-50mm f4. However, on a normal full spectrum camera it is very sharp?
Jim
spoupard wrote:
I tested my new to me 25-50 f4 on my IR converted Z50. I would say that, as wonderful as this lens is, it isn't very good for IR photography, at least at the short focal lengths. Zoomed to 50mm and it was pretty good, but any shorter and it produced horrific hot spots. These were all shot at 50mm.
Yes, Jim, on a regular camera it is a great lens. It is very sharp, but still retains that vintage lens character. I used it on my Z5 with great results.
James Markus wrote:
Scott,
Though I stayed at the wide end - I couldn't get decent focus at any setting in IR with my copy of the 25-50mm f4. However, on a normal full spectrum camera it is very sharp?
Jim
spoupard wrote:
I tested my new to me 25-50 f4 on my IR converted Z50. I would say that, as wonderful as this lens is, it isn't very good for IR photography, at least at the short focal lengths. Zoomed to 50mm and it was pretty good, but any shorter and it produced horrific hot spots. These were all shot at 50mm.
Yes, Jim, on a regular camera it is a great lens. It is very sharp, but still retains that vintage lens character.
