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Jeandemetz www.juzaphoto.com/p/Jeandemetz  |
The following opinions have been automatically translated with Microsoft Translator. | Minolta AF 70-210mm f/4 Pros: Strong metal construction, great plastic zoom lenses, made in Japan, makes you feel the depth and the three-dimensional, beautiful blur (bokeh), fast AF Cons: Weight, footprint, reflex imbalance, 80's color film-making, requires light Opinion: I have the "beercan" since 1986, used uninterruptedly on Minolta 7000 now on the Sony A350. It is a real bean, very heavy, built today with criteria that are not reproducible on consumer products: made in Japan, all metal, bayonet mount in metal, with hood, soft spiral ring ring for zoom, distance and focus diagram and depth of field (as it was used at the time) .nnIntendiamoci, transmits a feeling of excellent bill but on the reflex is very heavy and can unbalanced the capture and shuttering. On film machines it is a great canvas, from 70 to 210, and at the maximum of the focal plane becomes a macro and allows focusing very close. rn Reflex APSC becomes problematic the management of the maximum expected focal that looks like a 300 mm and would be a stabilized body. The yield is 30 years ago, the colors look like a film, as if there was a filter, but overall it's all fair hinted and defined.rnThe center of the lens whichIt is good at all apertures at 70 mm, the blur of the blur (the bokeh of today's youths) is excellent af / 9 (even 210mm !!!), where the single lights take on a round shape with seven sides ( such as diaphragm blades) can be distinguished. Always at 70mm the photo has a beautiful depth, it makes very good the distance between the subject in the foreground and the background. Ideal for portraits because it is very sharp.rnA 210mm only sports photos, with all the difficulties arising from the weight.rnBlue brightness since it is f / 4 fixed but then, in concrete, light is never enough, especially in motion.rnAF discrete and accurate if it is considered that more than thirty years have passed.rnA definitely vintage lens in yield and construction, it is difficult to carry, but still pleasing, sharp, fast and qualitatively superior to many current optics.rnThis price could be a valid purchase. sent on October 05, 2017 |
 | Sigma 28-105mm f/2.8-4 Aspherical Pros: Great focal length, vintage colors if you like, good brightness 2.8-4, robustness Made in Japan Cons: Definition by f / 5.6, at the maximum of color abnormalities and aberrations and little accuracy Opinion: I bought the Sigma 28-105mm Aspherical 1: 2.8-4 lens with Minolta Attack in 2004 in a store and was used. RnThe use on the Minolta 7000 was perfect (especially 28mm wide). Lastly, I bought a Sony A350 used to revitalize the Minolta kit. The Sigma constructive quality is not discussed, it is made in Japan: solid, the handle plastics have remained soft after 13 years. Autofocus is fast and accurate for amateur employment. The 72mm diameter lets you glimpse as much glass inside.rnThe APSC sensor unfortunately misses the shots we would expect from a 28mm wide angle, and the lens shrinks to a pretty standard handset but with good brightness.rn Color rendering it is not at the top, but it may please those who are used to the film. The weak point is the definition of the details. At 28 mm up to 4.5 / 4.5 the center image is not defined precisely, it looks almost "opaque" while on the edges is assindefinite olutamente as well as suffering from aberrations. Everything improves from f / 5.6 on, where details, even at the extremes, regain a good definition and the colors become brighter and loyal. In short, it is very pleasing. Used as portraits, it retains the same defects, but the opacity mentioned above on the sides of the larger apertures could also be a pleasant and distinctive effect in which the center of the portrait is sufficiently defined with deterioration to the margins .rnAbout the good blur.rnRecommended to amateur photographers and for experimentation. An important photo that has to "stay" would not do it with Sigma but with even more modern lenses even cheaper, given the improvements that have been there over time. sent on October 05, 2017 |
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