Chrome body or black? It makes a bit of a difference. Same question about the backs and are they newer or older? The older ones have a winding key rather than a folding lever. Do the serial numbers match on the insert and housing itself. They're interchangeable but if they're not matching pairs have less value.
Regarding the lens. Chrome or black? black will be newer and with a rubber focussing ring, the latest version. With the older lenses the "T" on the beauty ring indicates later multi coating.
Regarding the lens. Chrome or black? black will be newer and with a rubber focussing ring, the latest version.
The 100mm is a planar design just as the 80mm is too.. I'm sure the lens have been upgraded thru the years using computers but, that would be with all the lens line up, not just the 100mm.
The 100mm is a planar design just as the 80mm is too.. I'm sure the lens have been upgraded thru the years using computers but, that would be with all the lens line up, not just the 100mm.
No the 100mm lens has an advanced design that removed all most all aberrations. It is much sharper than the 80mm lens. I have both. Just look at the MFT curves ==> http://www.hasselbladhistorical.eu/HW/HWLds.aspx
So, are you saying that I was right in what I read? All the 100mm's are of a later advanced computer design?
The 80/2.8 C and the 80/2.8 CF seem to have nearly identical MTF curves. Those curves aren't great, but they're not bad.
Likewise, the 100/3.5 C and 100/3.5 CF seem to have nearly identical MTF curves. However, they are much better than those of the 80mm lenses; the 100mm lenses are outstanding.
Thanks. So there is an older 100mm and a newer 100mm. C versus CF.
Correct. A 100mm in either flavor would be sweet and you wouldn't be disappointed in its quality.
Given a choice, I prefer CF lenses because:
1. They're more convenient. On the C, the shutter speed ring and apertures rings are interlocked by default to maintain the same EV; you have to hold back a tab to set a different combination. On the CF, the rings are independent but you can momentarily interlock them by pressing a button.
2. CF lenses, specifically their shutters, are newer. The Prontor shutter CF lenses date from 1982 onward; a C lens is much older. The Synchro-Compur shutter C lenses began in 1957 and the T* coating appeared in 1974. I don't know whether the type of shutter makes much difference. However, a fully cleaned, lubricated, and adjusted shutter is what you want, regardless C or CF.
So, are you saying that I was right in what I read? All the 100mm's are of a later advanced computer design?
Thanks, Sirius.I am saying that the 100mm lens has much better corrected optics than the 80mm lens. I am neither confirming nor denying that computers were used in the design of the 100mm lens.
Sorry a bout that Alan, but Siriuos is correct about the MTF.No the 100mm lens has an advanced design that removed all most all aberrations. It is much sharper than the 80mm lens. I have both. Just look at the MFT curves ==> http://www.hasselbladhistorical.eu/HW/HWLds.aspx
Sorry a bout that Alan, but Siriuos is correct about the MTF.
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