Dave Oddie
Senior Member
You do realise the 50mm will have the same fielkd if view as a 75mm lens when mounted on the a100 (in 35mm terms)?The two lenses I plan to start with will be the Sony 50mm F1.4
prime and the Sigma 24-135mm F2.8-4.5 zoom. I also plan on getting
the Sony HVL-36AM flash and 4GB of Sandisk Extreme III memory.
The 50mm prime is a very sharp and bright lens, recommended as a
good walk-about lens. It will also be interesting to use a
fixed-focal-length lens. The Sigma is a good, fairly bright zoom
lens, approx 5.5x zoom. It's also fairly cheap and is quite well
rated for quality.
And that the zoom range of the 24-135 will give an equivalent field of view of 36-202 (again in 35mm terms)?
If 36-202 is what you want, fair enougn but you might want to consider the Sigma 18-125 which gives 27-188 equivalent. Not much less at the long end but usefully wider at the wide end.
There is a review of this lens on slrgear.com
There aren't any really wide angle primes available. The 20mm prime works as a 30mm on the a100 (not much wider than the 24mm "wide end of your propsoed lenses) and the 28mm works as a 42mm (in terms of field of view) which is really a standard lens.Later on, I intend to get the Sigma 24-70mm and 70-200mm F2.8 macro
lenses. Each of them will outperform the 24-135mm in terms of
brightness and minimum focus distance, and between them they'll
have a 8.3x zoom. They're also a bit more pricey, though.
I want to get the 85mm F1.4 prime also, and will also need to get a
wide angle lens, which will probably be another prime.
If you want true wide angle on an a100 you have to buy a zoom such as the Sigma 10-20 or the 11-18 from Sony.
I suppose you could buy a 14mm Sigam which becomes equivalent to 21mm on a aps-c sensor camera but it is a huge thing and I am not sure of they make it in the KM/Alpha mount.
There is a 16mm fisheye but it is a fisheye not a wide angle and I am not sure the reason why anyone would buy this lens for a cropped sensor d-slr as due to the crop factor it becomes ( I would imagine) merely a poorly corrected 24mm lens.
Dave
Finally, at
some point I'll get a mirror or reflex telescopic lens.
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