| Review of: Tokina Aspherical AF 28-105mm F3.5-4.5 by Photonerd on Tue November 17, 2020 | Rating: 9 | View more reviews | |
Views: 5156
Reviews: 3
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Like the best of the Tokinas, this lens is sharpish wide open and only gets sharper. Colours are exceptional. Its light and compact on a K-1. It has a little distortion, but average for a 28-105mm.
The distortion correction profile is very close to the Pentax D FA 28-105mm and in most circumstances you could use that. If that isn't close enough you probably need a prime anyway. Close to the D FA optically, you might need to try them side by side to see which is better. The colour of the Tokina would be hard to surpass.
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| Review of: Tamron XR Di AF (# A06) 28-300mm F3.5-6.3 by Photonerd on Mon December 23, 2019 | Rating: 8 | View more reviews | |
Views: 63313
Reviews: 18
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This lens makes a lot more sense on full frame. It gets very sharp, with sharp contrast f/11-16.
On crop cameras, it's OK as a summer travel lens or telephoto.
On full frame, the lens is sharp enough wide open, but the contrast goes up with every click of the aperture. At close range F/6.3 and F/7.1 are quite good, with shallow depth of field.
Distortion is present, but mild. Most professional editors have corrections for it.
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| Review of: Tokina AT-X 525 50-250mm F4-5.6 by Photonerd on Fri December 13, 2019 | Rating: 9 | View more reviews | |
Views: 51522
Reviews: 10
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This lens being a zoom may have distortion. But is very hard to see, even of FF.
Once the manual set up is mastered, there are few better lenses for static subjects, in this focal range.
50mm macro mode is a bit funky, but does focus to very close range. Sharpness, like the 75-300mm is good wide open, and just gets better. Bokeh is pleasant. Sharpness and shallow depth of field is useful on both one crop and FF sensors, from wide open.
Good copies could be useful workhorses for travel, or studio.
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| Review of: Tokina AT-X 352 35-200mm F3.5-4.5 by Photonerd on Wed August 15, 2018 | Rating: 8 | View more reviews | |
Views: 23567
Reviews: 3
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This review is for the SD version of this lens, with 62mm filters. manual focus.
On crop cameras this lens is surprisingly sharp, prime like, past F/5.6, with low distortion and minimal aberration. Bokeh is quite pleasant. It is light and compact for the zoom range. You do have to set the stabilisation distance manually. It has useful macro / close up focus at 200mm magnification. Otherwise minimum focus is quite close long, around 1m.
On full frame this lens has a little more distortion, edges get slightly softer, and without correction, there's a little aberration.
Overall, this is still a useful, sharp mid range lens.
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| Review of: Tokina AF SD 28-70mm F3.5-4.5 by Photonerd on Sat August 4, 2018 | Rating: 8 | View more reviews | |
Views: 38702
Reviews: 5
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This compact lens is very crisp and sharp from edge to edge from F/8, even on full frame.
Contrast is strong and colours slightly saturated.
Build quality is solid, but color is quite cool, but easily adjusted.
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| Review of: Tokina AT-X 28-70mm F2.8 by Photonerd on Sat August 4, 2018 | Rating: 9 | View more reviews | |
Views: 36447
Reviews: 4
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A sharp compact lens. Build is solid, mostly metal, with 72mm filters.
This lens is crisp, sharp from F/2.8. Edge to edge sharpness is very good even on full frame.
Distortion is minimal.
On crop cameras, the extra length makes a useful portrait lens.
Colour is good and fairly neutral.
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| Review of: Sigma EX DF 28-70mm F2.8 by Photonerd on Wed August 1, 2018 | Rating: 9 | View more reviews | |
Views: 54205
Reviews: 8
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This lens has a suitable optical formula for full frame or film. This model lacks the distortion and soft edges common in many 24-70mm models
Unlike a lot of modern 24-70mm and 28-75mm, this lens generates good, crisp edge to edge sharpness stopped down a bit. The detail on FF is excellent. Sharpness is very good to excellent beyond F/5.6. Colour and contrast is vibrant. Distortion is slight.
Unlike some super sharp macro lenses, sharpness at F/2.8 does not bite. Sharpness steadily improves to very good as you stop down. There is very slight softness in the extreme corners at all apertures.
Handling is a little front heavy, but manual focus, for narrow depth of field shots, is intuitive and nicely weighted.
This model is optimised for close up studio work. A good lens, if you can get a lightly used copy.
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| Review of: Sigma Aspherical AF 18mm-35mm F3.5-4.5 by Photonerd on Wed July 25, 2018 | Rating: 8 | View more reviews | |
Views: 26566
Reviews: 4
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This lightweight all plastic lens has a full aperture ring. There is a narrow main body expanding to an 82mm front filter holder. Like most older 18 & 17-35mm these lenses only make sense as full frame and film ultra wide angles.
Sharpness improves to very good across the frame after F/8. Compared to rival 18 & 19-35mm, distortion at 18mm is very mild and easily corrected. Colour is much less saturated than Sigma DG 17-35mm and Sigma 10-20mm.
Flare control is quite good and comparable with other flat front wide angles, like DA 15mm LTD, Sigma 10-20mm.
Mild aberration is visible but easily corrected.
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| Review of: Sigma EX Aspherical 17-35mm F2.8-4 by Photonerd on Wed July 25, 2018 | Rating: 9 | View more reviews | |
Views: 27399
Reviews: 4
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I use this lens on full frame, only. I have, also, used the similar DG version and the older UC 18-35 mm. These lenses only make sense on full frame, or film.
This lens is good edge to edge when stopped down, even on full frame. This lens is good for every day landscape / architecture work. Color is good, with good deep blues. It is less saturated than the DG version. Contrast is slightly improved with a good modern multi coated UV filter.The lens is not brilliant wide open and probably wasn't meant to be. The Pentax 15-30 mm is, obviously, sharper on the edge at wider apertures, but how often do you need ultra wide angle and shallow depth of field?
These flat front, 17-35 mm zoom models are also good with flare.
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| Review of: Sigma EX DG 17-35mm F2.8-4 by Photonerd on Wed July 25, 2018 | Rating: 9 | View more reviews | |
Views: 41566
Reviews: 8
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I used this lens on full frame, some years ago. I also have the similar EX version and the older UC 18-35mm. These lenses only make sense on full frame, or film.
This lens is good edge to edge, when stopped down, even on full frame. The Sigma 17-35 mm is good for every day landscape / architecture work. Color is good, accurate and quite saturated. The lens is not brilliant wide open and probably wasn't meant to be. The Pentax 15-30 mm is, obviously, sharper on the edge at wider apertures, but how often do you need ultra wide angle and shallow depth of field?
These 17-35 mm zoom models are also good with flare, similar to the DA 15 mm LTD or Sigma 10-20 mm.
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