Impressions & Notes
- Lens is smaller and lighter than Tamron 28-75mm f/2.8 and hence more easier to pick for family weekend outing with kids
- The close up in 1:2.3 turn out to be great in visiting places with flowers
- The wide angle covers the occasional need I have in wide landscape
- While overlapping in usage with my Tamron zoom, the sigma still has its places as I tend to choose it over the Tamron for family outing in weekend.
- For portrait shooting, I will prefer the Tamron for its constant and faster speed
- The vari-focal apertures from f/2.8 to f/4.5 don't bother me in actual usage. When light is dimmer, I will just widen up to the shorten end of the zoom
- Use of built-in internal flash incur quite a bit of high-light overblown in the shooting. I need a diffuser for the built-in flash. I know I have used film canister to some success but I will think a better built diffuser is a welcome addition to casual flash usage
- It is my best walk-around lens with a critical focal range
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2 comments:
What about the Pentax 17-70 f4 ? What's the best, in your opinion ?
I don't have direct experience with the Pentax 17-70 f/4.0. I would assume the Pentax to be a better lens with SDM for quiet motor. In terms of value, the Sigma may offer a better value with close-up in 1:2.3 and faster speed in 17-45 (not sure where the vari-focal goes off from 4.0)
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