I bought one of the first few 70-200mm F/2.8 EX HSM back in 1998 and so far have not had any problems at all with fogging or HSM failing. I dropped it once and the zoom ring became stiff so that cost $200 to repair, but otherwise it's been absolutely fantastic. Optical quality is stunning even wide open and it's easily a match for the original Canon 70-200mm F/2.8. The only thing is that HSM focusing isn't as quick as the Canon's USM.
Sigma Lens Horror Stories
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TrailsofLife
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If you maintain the lenses properly, like cleaning it after every uses, it should last very long.
my 2 years old 70-200 still works great...
but no coating on rear of the lens...
cos i peel it... he2...
fogging ain't a problem on 70-200....
but my 12-24 have a serious fogging problem...
especially at midnite...
btw, still rememba when i bought my 24-120 VR n take it out from CP, it was fogging too...
but no coating on rear of the lens...
cos i peel it... he2...
fogging ain't a problem on 70-200....
but my 12-24 have a serious fogging problem...
especially at midnite...
btw, still rememba when i bought my 24-120 VR n take it out from CP, it was fogging too...
kajun_liu said:
Fogging doesn't refer to the condensation that forms on the elements when the lens is moved from a cold to a hot place... that's just temporary and will happen to all lenses. Some older Sigma lenses were known for their elements becoming 'cloudy' after a while and this is permanent. This is the fogging being discussed here.
I believe proper storage will largely prevent the 2 main evils of fogging and fungus.
The amazing thing is I have a Canon 50mm f1.8 dating back to the film days (15 years old) and the optics is still clean and clear, while most of the other lenses have fogged up or grown fungus liao.
The amazing thing is I have a Canon 50mm f1.8 dating back to the film days (15 years old) and the optics is still clean and clear, while most of the other lenses have fogged up or grown fungus liao.
hmm... permanent fogging...
i thought it's temporary, just like my 12-24 always do...
shooting nite shot, when got a good angle, wanna shoot, my lens become blur...
very annoying ah...
btw, OT here... if d lens got fungus... can we clean it?
my father has some old manual lenses, fungus everywhere ah...
i thought it's temporary, just like my 12-24 always do...
shooting nite shot, when got a good angle, wanna shoot, my lens become blur...
very annoying ah...
btw, OT here... if d lens got fungus... can we clean it?
my father has some old manual lenses, fungus everywhere ah...
The EX series of Sigma has a velvety coating on the lens barrel outer surface. This rough surface is good for handling. However, this rubber coating is known to peel under heavy usage. Never seen the lens glass fog. Probably only affects older Sigma lens.
I own 2 Sigma lens that has served me very well.
The Sigma 50-500 is an EX lens. This lens has been used very heavily by me for all sorts of stuff. The rubber coating has started to peel in areas where I handle the lens. The glass is still as good. HSM still functions fine. No problems with it.
The other is a Sigma 18-125. This has a different surface on the lens barrel. The rough texture is moulded on and will not peel. Nice glass that is sharp wide open.
Maybe i'm lucky....
I own 2 Sigma lens that has served me very well.
The Sigma 50-500 is an EX lens. This lens has been used very heavily by me for all sorts of stuff. The rubber coating has started to peel in areas where I handle the lens. The glass is still as good. HSM still functions fine. No problems with it.
The other is a Sigma 18-125. This has a different surface on the lens barrel. The rough texture is moulded on and will not peel. Nice glass that is sharp wide open.
Maybe i'm lucky....
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