Does this Vivitar 28mm have Ricoh pin?

**niceshot** · 02-09-2016, 04:46 AM

Your new lens is made by Cosina sharp little Devil/

ohaya · 02-09-2016, 09:34 AM

Originally posted by niceshot

Your new lens is made by Cosina sharp little Devil/

I was looking at this new article (great one):

The Evolution of the Pentax K-mount - Articles and Tips | PentaxForums.com

and was wondering what kind of mount this Vivitar would be considered to have as in the table? I *think* my K-r is able to set the aperture/speed with this lens, so it seems like it is a "KA" or equivalent type mount?

Thanks,
Jim

stevebrot · 02-09-2016, 10:24 AM

Originally posted by ohaya

I was looking at this new article (great one):

The Evolution of the Pentax K-mount - Articles and Tips | PentaxForums.com

and was wondering what kind of mount this Vivitar would be considered to have as in the table? I *think* my K-r is able to set the aperture/speed with this lens, so it seems like it is a "KA" or equivalent type mount?

Thanks,
Jim

"KA" with a little Ricoh "P" added for spice.

Steve

ohaya · 02-09-2016, 10:33 AM

Originally posted by stevebrot

"KA" with a little Ricoh "P" added for spice.

Steve

What is "little Ricoh "P""?

**boriscleto** · 02-09-2016, 11:03 AM

Originally posted by ohaya

What is "little Ricoh "P""?

Ricoh had a program mode starting in 1984 with the XR-P. This is what the 'Ricoh Pin' is for.

Ricoh P lenses were not compatible with A mode on Pentax bodies and vice versa. Third party lenses usually had both the P pin and the A pin.

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02-09-2016, 04:46 AM	#16
niceshot Site Supporter Join Date: Mar 2014 Location: NY Photos: Gallery Posts: 1,565	Your new lens is made by Cosina sharp little Devil/

02-09-2016, 09:34 AM	#17
ohaya Senior Member Join Date: Jan 2016 Posts: 242 Original Poster	Originally posted by niceshot Your new lens is made by Cosina sharp little Devil/ I was looking at this new article (great one): The Evolution of the Pentax K-mount - Articles and Tips \| PentaxForums.com and was wondering what kind of mount this Vivitar would be considered to have as in the table? I think my K-r is able to set the aperture/speed with this lens, so it seems like it is a "KA" or equivalent type mount? Thanks, Jim

02-09-2016, 10:24 AM	#18
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by ohaya I was looking at this new article (great one): The Evolution of the Pentax K-mount - Articles and Tips \| PentaxForums.com and was wondering what kind of mount this Vivitar would be considered to have as in the table? I think my K-r is able to set the aperture/speed with this lens, so it seems like it is a "KA" or equivalent type mount? Thanks, Jim "KA" with a little Ricoh "P" added for spice. Steve

02-09-2016, 10:33 AM	#19
ohaya Senior Member Join Date: Jan 2016 Posts: 242 Original Poster	Originally posted by stevebrot "KA" with a little Ricoh "P" added for spice. Steve What is "little Ricoh "P""?

02-09-2016, 11:03 AM	#20
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,477	Originally posted by ohaya What is "little Ricoh "P""? Ricoh had a program mode starting in 1984 with the XR-P. This is what the 'Ricoh Pin' is for. Ricoh P lenses were not compatible with A mode on Pentax bodies and vice versa. Third party lenses usually had both the P pin and the A pin.