OP
TOMSDPR
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Contributing Member
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Posts: 935
Re: Powershot fails SX260, SX240, S95- systematic or bad luck?
GeraldW wrote:
Tom,
I have to agree with Toomanycanons. I've owned the G5, 6, 7, 9, 11, 12, and 15; the S50, 70, 80, and 90; the SD800IS, 850IS, 870IS, 880IS, 950IS (2); the A710IS; SX230HS (3), and the SX260HS; and no scratches on any of them. I've had the S90 for 4 years, and had the G7 for 4 years. I've carried them in shirt, pants, and jacket pockets, in tote bags tossed in with water bottles and other odds and ends, although usually in a soft case. Those kind of blades were used with film PnS cameras and I had a number of those from Canon, Ricoh, Pentax, Yashica, and Olympus, and no problems there, either.
I never use a wrist strap, as the camera dangles and tends to bang into things as you use your hands. Like when using a hand rail on the stairs, or reaching for a door knob. Instead, they have all been used with a lanyard (neck cord) on the smaller ones and a neck strap on the G5 and G6. I am also extremely caseful to keep them away from sand or grit.
Those blades are aluminum and should be too soft to scratch glass. They could damage the lens coating if pushed in while opening. However, I think it's more likely that some kind of hard, abrasive grit like sand has gotten between the blades and the lens, and the opening or closing of the blades has ground it against the lens. If it were the blades themselves they would have to held inward against the lens while camera is turned on. Or, permanently deformed to touch the lens - but then they would probably jam open in their recesses.
You said you were very careful with your cameras. Have you let anyone else use them? Taken them to the beach? You're not the first to have these problems - I can recall a number of posts.
Gerald,
Thks for your advice.
In fact the scratsches are manly caused by a handling problem which appears as soon as the lens tries to extract while the camera is still in a bag or pouch if the ON button gets touched incidently or if the REPLAY button got touched before and the shutterbutton gets a light touch afterwards.
I also never use neck strap or strap at all. I am the very only user of my cameras and I do not take them to a sandy beach exept if there is no wind and I am only taking photographs there. If not in use I carry my cameras in a case/back around my waist.
In theory you might be right that Aluminium is a very soft metal but are you sure the lenses are made of glass and not plastic? In case of my SX260 Canon replaced the lens/shutterbox without hesitation. Do you think they did so if there was any doubt that sand or something else than the lenscover blades would have rsulted the scratches?