HI Steve: I checked my Mk I and it has the same description. At the short end, you see the a small part of the blades and the long end you don't. Mine is working fine as I guess yours should be fine.
Regards, Gary ----- Original Message ----- From: "conestoga304" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Sunday, November 30, 2003 7:02 AM Subject: EOS Urgent: Help needed to sort out EF 28-70 f3.5/4.5 MkII lens > Folks > > I need your help - please read explanation and request! > > I am in China and may have the opportunity to visit a museum later in > the week. Some of my photo gear was packed in the checked baggage and > I am concerned that it *may* have suffered shock damage - not on the > flight but during the taxi ride later (roads are very rough). The > lens was well packed, but... > > The particular lens in question is the old EF 28-70 f3.5/4.5 Mk2 - > it's not an 'L' lens but it is really quite good - or at least was. > > The possible problem is with the aperture diaphragm. When the lens is > not powered (i.e. disconnected from the camera or the camera > indicates 'wide-open' f3.5 or 4.5 depending on focal length) I would > expect the petals of the diaphragm to be fully retracted and not > visible. This is certainly the case with the other two lenses that I > have with me. > > This is not the case with my 28-70 - rather, in the above state I can > see the petals (a little bit) and I'm not sure that this is normal. > > Apart from this the lens 'seems' to function as you would expect - it > focuses, the diaphragm opens/closes when CF11 on my EOS10 (depth of > view preview) is selected, I hold down the partial metering button > and adjust the aperture in Av mode. > > It's just that I don't remember seeing the petals before - not that I > have really ever looked. But the sight of them struck me as 'unusual'. > > Request. Would some kind soul please take a look at their example of > this particular lens and let me know what they see with regard to the > diaphragm. > > Does anyone maybe know of a simple test to verify, or give greater > confidence of, correct operation (short of getting films developed). > > MTIA > > Steve * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
