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Vivitar made a number of high quality zooms under the Series I label. The 90mm to 180mm f4.5 flat-field VMC lens from 1978 is an one of them. This Vivitar 90-180mm f/4.5 lens was really designed for medical photography needs. A ring-light flash unit was designed to mount on the front of this lens too. This original medical market niche explains some of the design features and range of this high quality zoom lens.
This lens is long, and pretty heavy. It produces excellent results in macro-work down to 1:4 at 90mm and to 1:2 at its 180mm setting.
On most modern zoom lenses, macro photography settings are a lower quality setup. Achieving macro capabilities means shifting some elements and so sacrificing some of the zoom's control over spherical and other aberrations.
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Buying your first medium format camera can be confusing. I find it helps to point out that you probably will end up with more than one type of medium format camera over your photography career. For me, exploring and enjoying the different types and formats of medium format equipment is much of the fun of photography. By comparison, 35mm SLRs are boringly alike.
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Choosing a medium format camera is usually much more difficult than it needs to be. It seems that everyone has an opinion while almost no-one has sufficient, multi-system experience to back their opinion. To the surprise of most, most every opinion you'll hear is agenda-laden rather than sincerely spoken.
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Very sharp, very compact lens. It has amazing colors and details if you count this is a 350mm long lens. I don't know better equipment to make candid shoots , excellent working tool for photo journalist too. It has fixed aperture as common at all mirror lenses. It has only one weakness very rare hard to get it and quiet expensive due rarity and quality. It has several filters what you can mount on rare side.
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Article written by Danny Gonzalez in 1998 comes from archive.
The first thing that anyone looking for a 645 camera should consider is whether an interchangeable back option is of paramount importance. Though interchangeable inserts are almost universal in 645 (only the Fuji RF cameras don't have them), only a mid-roll changeable back offers the freedom to switch to Polaroid at will.
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