- Jul 31, 2013
- Real Name
I agree, such delicate manufacturing was probably not thought to last almost 50 years. Less not think about lasting another 50 years in my own hands.Please, no need to apologise!! I'm totally satisfied with the knowledge that no one can substantiate the plastic optical elements. This is having a great soothing effect on my psyche, as is.
About the hood issue; you're totally right! Unfortunately, the original Pentax hoods made out of rubber have mostly desintegrated by now, as rubber hoods do. I, myself, dare not use my original hoods, as they will probably break upon unfolding. They stay in my red box.
But, to have a hood is good!
As I only use my Pentax-110 lenses in anger on my M4/3 and Pentax Q cameras, it's a little bit easier for me, and supposedly for you too, as the lens equivalency doesn't mandate hoods in the original "wideness". Instead it's possible to find good looking replacement hoods that won't vignette.
For my 24 mm (48 mm eq on M4/3) I simply use one of these:
View attachment 823033
and for both the 18 mm (36 mm eq) and 50 mm (100 mm eq) it's possible to get nice metal hoods in both wide Ø30.5 mm, and tele Ø37.5 mm varietys in China.
And the Ø49 mm lenses are no problems finding hoods for. Also I don't have any of these lenses I've got hoods, though.
It's another story if/when you want to use them on APS-C sensor size cameras.
Pentax Auto 110 lenses
Pentax-110 18 mm F2.8 Wide-angle lens, 6 elements in 6 groups, filter Ø30.5 mm
Pentax-110 24 mm F2.8 Standard lens of 6 elements in 5 groups, filter Ø25.5 mm
Pentax-110 50 mm F2.8 Telephoto lens of 5 elements in 5 groups, filter Ø37.5 mm
Pentax-110 70 mm F2.8 Telephoto lens of 6 elements in 5 groups, filter Ø49 mm
Pentax-110 20mm—40 mm F2.8 Zoom lens of 8 separate elements, filter Ø49 mm
I would like to go with metal hoods but not know the exact limitations of vignetting and angle of view with 2x crop factor I would not take upon myself to experiment with buying to many things off evilBay and wait for delivery from China (I might end up opening my own metal scrapyard in the end of such an experiment ).
Any volunteering of such information would greatly be appreciated, if not to form a base of what works on what to save up people’s time and money but at least get the best that we can from these little gems. (In the end it’s only us, the community, who would really care about this lenses as they will eventually pass into fading of memory and history.