Re: Lens hood for Viviter S1 600mm Solid Cat.
On 8/1/2017 10:59, P. J. Alling wrote: I appreciate the advice, but I haven't needed to do such fine measurement since I stopped rebuilding air cooled VW engines, some would argue that it wasn't necessary even then, but some are idiots. I'm really hoping that someone on the list just has this information hidden away somewhere, because I just can't justify buying a measuring device for a single purpose, and in this particular case Google is not my friend. I'll bet there's a NAPA or CarQuest parts store nearby that has them & if you take the lens there they'll measure it for you. Especially if it's one of the stores that still has a machine shop in the back. On 7/31/2017 8:59 PM, Paul Stenquist wrote: A vernier caliper can achieve a measurement of the inside diameter accurate to a tenth of a mm or better. It's an inexpensive measuring tool that I wouldn't be without. Paul via phone On Jul 31, 2017, at 8:54 PM, P. J. Alling wrote: I don't remember if I ever posted this to the list, but I've been trying to find a lens hood for this lens, since I acquired it many years ago. When it was originally released sometime in the late 70's early 80's it was shipped with a lens hood, and has a large diameter front filter ring, which is unmarked, and why would it be? After all, those front filters were and are extremely expensive, and it does take rear filters in a much less expensive 30.5 mm diameter of which I fortunately have the full set. However the lens hood disappeared sometime before it came into my possession. Given the cost of a decent lens hood in 95mm diameter or greater, (I've measured the inside diameter and it might be 101mm), and the difficulty with returning an inexpensive lens hood to China, I'm loath to order one that might not fit. The slip on plastic lens cover has an inside diameter of 106mm so 112mm the next common size up from 101mm is out. Unfortunately my tools and aren't very accurate for measuring the inside diameter of the lens threads, (simply a metal rule in inches and metric), and there's more than enough slop for the diameter to be anything between 95mm to 103, the later of which would be just a nightmare to find. -- America wasn't founded so that we could all be better. America was founded so we could all be anything we damn well please. - P.J. O'Rourke -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- Science - Questions we may never find answers for. Religion - Answers we must never question. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lens hood for Viviter S1 600mm Solid Cat.
107mm is about right for maximum outside diameter, the original soft plastic push on lens cap is labeled 106mm. However the metal of the front filter ring is quite thick something like 2mm maybe 3/16 inch thick. It's possible to get a 95mm screw in lens hood from China for a pretty reasonable price, but I think the filter ring is closer 101mm which used to be a standard size, (approximately 4" diameter), which used to be a standard size but I haven't been able to find anything that size for several years. One of the problems is a step down ring from 105mm to 95mm is twice as expensive as the hood. I expect that a step up/down ring from from 101 to 95 to be in the same ballpark even if I could find one. On 8/1/2017 2:55 PM, Collin Brendemuehl wrote: B&H says the OD is 107mm / 4.2" https://www.bhphotovideo.com/c/product/801410140-USE/vivitar_super_telephoto _600mm_f_8.html -- America wasn't founded so that we could all be better. America was founded so we could all be anything we damn well please. - P.J. O'Rourke -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lens hood for Viviter S1 600mm Solid Cat.
http://www.ebay.com/itm/Vivitar-Series-1-600mm-CAT-lens-for-Canon-EOS-digita ls-/292197278055?hash=item440850a167:g:F54AAOSwO95Zepsm That's a T-mount, isn't it? IF someone needs one, this would be a bargain. Just swap that silly mount. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Lens hood for Viviter S1 600mm Solid Cat.
B&H says the OD is 107mm / 4.2" https://www.bhphotovideo.com/c/product/801410140-USE/vivitar_super_telephoto _600mm_f_8.html -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lens hood for Viviter S1 600mm Solid Cat.
I appreciate the advice, but I haven't needed to do such fine measurement since I stopped rebuilding air cooled VW engines, some would argue that it wasn't necessary even then, but some are idiots. I'm really hoping that someone on the list just has this information hidden away somewhere, because I just can't justify buying a measuring device for a single purpose, and in this particular case Google is not my friend. On 7/31/2017 8:59 PM, Paul Stenquist wrote: A vernier caliper can achieve a measurement of the inside diameter accurate to a tenth of a mm or better. It's an inexpensive measuring tool that I wouldn't be without. Paul via phone On Jul 31, 2017, at 8:54 PM, P. J. Alling wrote: I don't remember if I ever posted this to the list, but I've been trying to find a lens hood for this lens, since I acquired it many years ago. When it was originally released sometime in the late 70's early 80's it was shipped with a lens hood, and has a large diameter front filter ring, which is unmarked, and why would it be? After all, those front filters were and are extremely expensive, and it does take rear filters in a much less expensive 30.5 mm diameter of which I fortunately have the full set. However the lens hood disappeared sometime before it came into my possession. Given the cost of a decent lens hood in 95mm diameter or greater, (I've measured the inside diameter and it might be 101mm), and the difficulty with returning an inexpensive lens hood to China, I'm loath to order one that might not fit. The slip on plastic lens cover has an inside diameter of 106mm so 112mm the next common size up from 101mm is out. Unfortunately my tools and aren't very accurate for measuring the inside diameter of the lens threads, (simply a metal rule in inches and metric), and there's more than enough slop for the diameter to be anything between 95mm to 103, the later of which would be just a nightmare to find. -- America wasn't founded so that we could all be better. America was founded so we could all be anything we damn well please. - P.J. O'Rourke -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- America wasn't founded so that we could all be better. America was founded so we could all be anything we damn well please. - P.J. O'Rourke -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Lens hood for Viviter S1 600mm Solid Cat.
A vernier caliper can achieve a measurement of the inside diameter accurate to a tenth of a mm or better. It's an inexpensive measuring tool that I wouldn't be without. Paul via phone > On Jul 31, 2017, at 8:54 PM, P. J. Alling wrote: > > I don't remember if I ever posted this to the list, but I've been trying to > find a lens hood for this lens, since I acquired it many years ago. > > When it was originally released sometime in the late 70's early 80's it was > shipped with a lens hood, and has a large diameter front filter ring, which > is unmarked, and why would it be? After all, those front filters were and > are extremely expensive, and it does take rear filters in a much less > expensive 30.5 mm diameter of which I fortunately have the full set. > > However the lens hood disappeared sometime before it came into my possession. > > Given the cost of a decent lens hood in 95mm diameter or greater, (I've > measured the inside diameter and it might be 101mm), and the difficulty with > returning an inexpensive lens hood to China, I'm loath to order one that > might not fit. > > The slip on plastic lens cover has an inside diameter of 106mm so 112mm the > next common size up from 101mm is out. > > Unfortunately my tools and aren't very accurate for measuring the inside > diameter of the lens threads, (simply a metal rule in inches and metric), and > there's more than enough slop for the diameter to be anything between 95mm to > 103, the later of which would be just a nightmare to find. > > -- > America wasn't founded so that we could all be better. > America was founded so we could all be anything we damn well please. >- P.J. O'Rourke > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
