@f/2.8 with K10D 
@f/7.1 in 70mm
@f/7.1 in 28mm
(wrong SR focal length in 70mm)
This is an inexpensive manual focus zoom with 'A' aperture. At long end of the zoom in 70mm, it has a 1:3 macro magnification making this zoom very useful. Its wide open aperture is reasonably sharp.
Initial Impressions:
- Very well constructed Tokina lens.
- Not the expensive kind like the ATX and pro model, but well built
- A bit on the heavy side but still compact for 28-70
- Filter size is 62mm and I don't have lens hood yet.
- Macro only applies in 70mm with 1:3 magnification, easy for casual close up photo
- Two touch zoom rings
- Focusing ring is loose making it ideal for quick shooting
- I prefer loose focusing ring over stiff one as I have managed to cope with loose focusing ring much better than those stiff ones.
- I place my thumb and middle finger right next to the focusing ring and I use my index finger to turn focus ring. My placement provides friction on the focusing ring subject to how precise and how fast I want to focus. I vary my grip pressure upon shooting subject to how how I want to engage the focus lock.
- For faster focusing speed and ease of recomposition from center focus, I sometime switch to MF on body.
- The 'A' aperture is super sweet on this manual zoom and it doen't need adjustment in metering to get exposure right, very convenient as compared to M42 manual lens
- I intend to use this zoom lens to complement my Kiron 70-150mm f/3.8 with film body Pentax SuperProgram. The two lens are planned for manual focusing film body.
- Any manual zoom will be pain for SR focal length adjustment.
- Use Menu -> Shake Reduction change focal length
- Recommended alternative to Kit's lens
- Has great 1:3 macro
- Faster speed with f/2.8 aperture and reasonably sharp
- Fast and achievable manual focus in the dark
3 comments:
Hi Hin,
I've been following your blog silently for quite some time, since i stumbled upon other Pentaxians, and i greatly appreciate all your input with regards to lens reviews and various other photographic techniques ... keep up the good work!
I'm considering buying this lens and was wondering if you have anything else significant to add, taking into consideration that you could be past the "initial" stages of using the lens. and if you don't mind me asking, may i know at what price did you acquire it (i'm guessing 2nd hand).
Oh yeah! :) i think it's only fair that i come clean and air my grievance when you successfully sniped me on ebay for the teleconverter several weeks ago! :D hehehe no worries. do lemme know how that's working for ya.
Sorry for the long comment, couldn't find your personal email add.
Thanks in advance.
ch.
This is a good lens that I recommend. It has the 'A' aperture which is a good thing for manual focus lens. Remember the focal range from f/2.8 to f/4.3 as there are other variations.
This is not a popular lens people sought after. Perhaps, Tokina is not popular. The lens has a loose focusing ring and it can be a turn off to others, but I find it wonderful for fast focusing. The lens is fast, quite sharp and very reasonable in color. Quite compact and small to use. If you see the price around $50 in good condition, I would have no hesitation to recommend it. Close focusing is in the 70mm end with 1:3 magnification ratio.
I would price it from $40 to $90 for the item depending on the condition.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190274140632#ebayphotohosting
some one likes your description
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