sanfong
Senior Member
I did test both lens in AP and on the spot I decided Sigma (prevous version before HSM one). Reason:
1. I like the built quality, although Tamron is lighter and compact but feels plastic and its like kit lens
2. I like a bit soft edges
3. I appreciate the 4mm wide difference
4. It can use for FF body
5. I do agree that switching from AF to MF need 2 actions, you have to pull the clutch and switch AF to MF. The reason Sigma include this feature is to prevent accidental changing focus. Example, the lens is in AF mode, when I focused that I desired, I can switch the switch from AF to MF, leave the clutch remain at "AF", this will lock my focusing and prevent and accident. I find it pretty sweet, I really disliked it at first but later I find it very useful.
Although 82mm filter is a bomb and its heavy weight, but this lens really can last and can't leave home without it.
1. I like the built quality, although Tamron is lighter and compact but feels plastic and its like kit lens
2. I like a bit soft edges
3. I appreciate the 4mm wide difference
4. It can use for FF body
5. I do agree that switching from AF to MF need 2 actions, you have to pull the clutch and switch AF to MF. The reason Sigma include this feature is to prevent accidental changing focus. Example, the lens is in AF mode, when I focused that I desired, I can switch the switch from AF to MF, leave the clutch remain at "AF", this will lock my focusing and prevent and accident. I find it pretty sweet, I really disliked it at first but later I find it very useful.
Although 82mm filter is a bomb and its heavy weight, but this lens really can last and can't leave home without it.
