CanonRFinder
Well-known
HI,
I have got my son who is hosting my site, to add a small section called "Pete's Blog". Still coming to grips with a nondescript word like "blog" which is place for information but I suppose this 2006 and not the 60’s & 70’s when things were on a higher level.
Anyway it will contain information on things that I have stumbled across during my research into the Canon RF era, but there again some may know about it already. I will try and update the info at least once a month so everyone can have a good gander at it.
My first “Blog” I have included below and hope it is trivial enough to be of some interest to Canon collectors and users.
As many would know Canon produced lens caps for there lenses, with the early versions in Satin chrome (S/C) slip-on style and the later caps in black plastic. Up to 1958 there were five slip-on size chrome caps produced, 36mm, 42mm, 50mm, 57mm and 60mm. What I didn’t know was that Canon produced screw-in lens caps in three sizes 34mm, 40mm and 48mm and all had the same satin chrome look as the slip-on caps. I already had in my collection a 58mm screw-in S/C lens cap which came with a 200mm f/3.5 Mirror Box lens that I won of eBay some time ago. As the cap had a later style “C” in the company name CANON on the front I presumed that it belonged to something after Canon ceased issuing screw mount lenses in1973. Early this year I won another cap similar to the one I already owned and thought it would be just an added extra. The picture in the auction was very fuzzy and not very good and as I was the only bidder, won it. It wasn’t till I received the cap that I realized it was smaller and had an early version of the “C” in Canon. The variation in the “C” in the company name appeared around May 1957 on the Canon Model L1 camera. Checking literature in my collection the first mention of a screw-in lens cap was in March 1957 yet a June 1956 price list does not mention them. So the early version “C” screw-in lens caps were produced for less than one year. The first mention of a 58mm screw–in lens cap was in a May 1961 price list. The only reason why I think these screw-in lens caps are so difficult to obtain is because the person purchasing the original camera/lens equipment would have a slip-on cap supplied. Replacing a lost cap or purchasing a spare, they would go for the slip-on style as it was easier to remove. Why buy a screw-in cap, doubt if I would unless I got sick of replacing lost slip-on caps.
I expect to see a bevy of these caps to now appear on eBay after this disclosure as I am still after nine examples out of the possible eleven variations that I think exist.
Enjoy Peter K.
I have got my son who is hosting my site, to add a small section called "Pete's Blog". Still coming to grips with a nondescript word like "blog" which is place for information but I suppose this 2006 and not the 60’s & 70’s when things were on a higher level.
Anyway it will contain information on things that I have stumbled across during my research into the Canon RF era, but there again some may know about it already. I will try and update the info at least once a month so everyone can have a good gander at it.
My first “Blog” I have included below and hope it is trivial enough to be of some interest to Canon collectors and users.
As many would know Canon produced lens caps for there lenses, with the early versions in Satin chrome (S/C) slip-on style and the later caps in black plastic. Up to 1958 there were five slip-on size chrome caps produced, 36mm, 42mm, 50mm, 57mm and 60mm. What I didn’t know was that Canon produced screw-in lens caps in three sizes 34mm, 40mm and 48mm and all had the same satin chrome look as the slip-on caps. I already had in my collection a 58mm screw-in S/C lens cap which came with a 200mm f/3.5 Mirror Box lens that I won of eBay some time ago. As the cap had a later style “C” in the company name CANON on the front I presumed that it belonged to something after Canon ceased issuing screw mount lenses in1973. Early this year I won another cap similar to the one I already owned and thought it would be just an added extra. The picture in the auction was very fuzzy and not very good and as I was the only bidder, won it. It wasn’t till I received the cap that I realized it was smaller and had an early version of the “C” in Canon. The variation in the “C” in the company name appeared around May 1957 on the Canon Model L1 camera. Checking literature in my collection the first mention of a screw-in lens cap was in March 1957 yet a June 1956 price list does not mention them. So the early version “C” screw-in lens caps were produced for less than one year. The first mention of a 58mm screw–in lens cap was in a May 1961 price list. The only reason why I think these screw-in lens caps are so difficult to obtain is because the person purchasing the original camera/lens equipment would have a slip-on cap supplied. Replacing a lost cap or purchasing a spare, they would go for the slip-on style as it was easier to remove. Why buy a screw-in cap, doubt if I would unless I got sick of replacing lost slip-on caps.
I expect to see a bevy of these caps to now appear on eBay after this disclosure as I am still after nine examples out of the possible eleven variations that I think exist.
Enjoy Peter K.
