Herman wrote:
>
> Unfortunately I couldn't follow the beginning of the discussion, but I also
> have a question with regards to lens quality.
>
> I am planning to buy a 100-400 USM IS lens, and need something shorter as
> well. Somebody sugested the 28 - 105 IS, but I am concerned about the
> optical quality of such a lens. How bad is it realy (concerning the comment
> below). At the moment I shoot with a 28-85 "prosumer" lens from the other
> professional brand in the market place. This is regarded as one of their
> better prosumer lenses, but I am not happy with the optical quality at all,
> compared to the quality I get from the 300f4 which is realy outstanding in
> my opinion.
>
First, the 28-105 is NOT an IS lens, there is a 28-135 IS, though.
I own all of the three lenses in question (28-70L, 28-105, 28-135IS).
Although I didn't do an even semi scientific comparison test, my
*subjective* opinion is, that the 28-70L is clearly the best of them.
Inifinitely better at f/2.8 of course, way better at f/3.5 (which is
the widest for the two others, still noticeably better - or should I
say different(?) at f/8. MTF values do not show significant
differences at f/8, IMHO. But I have the (subjective) feeling it has
a different "look", don't know what it really is, sharpness, contrast,
color rendition, the more effective lens hood ..., or just my wish it
*should* be better for its higher price ;-)
If you want quality equal to a 300 f/4 L, even the 28-70 L will have
a hard time to deliver this.
> I won't be able to afford the 28-70L or the 17-35L? I realy do not want to
> buy something that I would not be happy about either. I would favour a lens
> with a wider angle, something in the 24-50mm range or even wider. Are there
> any suggestions? I would prefer a zoom, but might have to settle for a prime
> as a substitute until there is enough money available for a proper zoom
> lens.
>
I think you have several options
- Try to rent or borrow a 28-105 and/or 28-135 before buying
- Search for a used 28-70 L
- Take a look at Tokinas (ATX pro), Tamrons (especially 20-40 zoom!) or
Sigmas (EX) offerings
A single prime might not be enough to cover all your needs, 24mm or even wider
to 100mm. Even with two lenses that will be hard to do, maybe a 24 and 50mm
combo would do, only you will know.
Thomas Bantel
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