folks,
As I mentioned on the list a month or two ago, I've had a lot of trouble
getting sharply focussed results from the Sigma 15-30mm EX lens I bought
about a year ago. In fact, I don't know of a single acceptably focussed
shot I've had from that lens. I had been using it with a Z-1 and an MZ-5,
doing the focus manually using these cameras' matte screens.
Now before you tell me that my technique must be at fault, let me
mention that I do all of my photography with manual focus, since most of my
lenses are manual, so I've shot an awful lot of film this way, always with
good results. I also tried the Sigma on the Z-1 in auto-focus mode,
shooting some easy-to-focus subjects, and with higher-than-necessary shutter
speeds, and again the result was unacceptable. Of course, the processing
lab might have been at fault, but I use them an awful lot and rarely have
problems with them.
So finally I got really desperate, and shot a roll of 36 exposures using
this lens mounted on my entirely manual MZ-M camera. I just got the film
back, and darned if every photo isn't sharp as a tack! As you probably
picked up from the title of this email, I did all the focussing using the
split prism. I was concerned I might have to junk this lens, so it's a
relief to know that everything's OK.
Richard.
home page: www.richard-seaman.com
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