VIvitar 28mm Pentax PK/K versus M mount

aboslett · 06-20-2019, 08:22 AM

Hi all,

Novice Pentax K1000 and member of the forum! Hello.

I recently purchased a "Vivitar 28mm f2.8 Pentax PK mount" lens off Ebay. However, it doesn't appear to fit my Pentax K1000 and on the side of the lens, there is a "M/MD". Is this a Pentax M mount? Still figuring this easy stuff out!

Sincerely,
Andy

**pepperberry farm** · 06-20-2019, 08:31 AM

not a K-mount, the M/MD would indicate a Minolta mount...

you should contact the seller and request a return/refund...

Racer X 69 · 06-20-2019, 08:34 AM

Originally posted by aboslett

Hi all,

Novice Pentax K1000 and member of the forum! Hello.

I recently purchased a "Vivitar 28mm f2.8 Pentax PK mount" lens off Ebay. However, it doesn't appear to fit my Pentax K1000 and on the side of the lens, there is a "M/MD". Is this a Pentax M mount? Still figuring this easy stuff out!

Sincerely,
Andy

I think you may have a Minolta mount lens.

Quote:

The Minolta SR-mount was the bayonet mounting system used in all 35mm SLR cameras made by Minolta with interchangeable manual focusing lenses. Several iterations of the mounting were produced over the decades, and as a result, the mount itself was sometimes referred to by the name of the corresponding lens generation (f.e. "MC", "MD" or "X-600") instead.

Read more here: Minolta Mounts

Can you post a picture of it?

aboslett · 06-20-2019, 07:15 PM

Here are a few photos!

Attached Images

View Picture EXIF

MarkJerling · 06-20-2019, 07:39 PM

Originally posted by aboslett

Here are a few photos!

Can you post a photo of the back of the lens, the lens mount area please? (With the rear plastic cap removed)

**Just1MoreDave** · 06-20-2019, 10:20 PM

The aperture ring is also backwards from typical Pentax. I converted one from MD to PK sort of - no aperture lever - and it really wasn't worth the bother.

Not a Number · 06-20-2019, 10:50 PM

I'd say it is a Minolta mount. I believe I see the MD tab on the lower right side of the aperture ring.

E-man · 06-21-2019, 08:26 AM

I used to shoot with Minolta gear and 'MD' would most likely indicate a Minolta mount with automatic aperture control for shooting in aperture priority or full program mode.

aboslett · 06-21-2019, 06:16 PM

Attached!

Originally posted by MarkJerling

Can you post a photo of the back of the lens, the lens mount area please? (With the rear plastic cap removed)

E-man · 06-22-2019, 11:14 AM

Yep, that thar be a lens for a Minolta. It looks like the latch on the aperture ring is a bit chewed up.

aboslett · 07-10-2019, 05:15 PM - **1 Like**

I realized I never said thank you for everyone's help. So thank you! The seller agreed to the return so all's well that ends well.

06-20-2019, 08:22 AM	#1
aboslett New Member Join Date: Jun 2019 Posts: 7	VIvitar 28mm Pentax PK/K versus M mount Hi all, Novice Pentax K1000 and member of the forum! Hello. I recently purchased a "Vivitar 28mm f2.8 Pentax PK mount" lens off Ebay. However, it doesn't appear to fit my Pentax K1000 and on the side of the lens, there is a "M/MD". Is this a Pentax M mount? Still figuring this easy stuff out! Sincerely, Andy

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06-20-2019, 08:31 AM	#2
pepperberry farm amateur dirt farmer Join Date: Dec 2014 Location: probably out in a field somewhere... Photos: Gallery \| Albums Posts: 41,679	not a K-mount, the M/MD would indicate a Minolta mount... you should contact the seller and request a return/refund...

06-20-2019, 08:34 AM	#3
Racer X 69 Moderator Man With A Camera Join Date: Jun 2010 Location: The Great Pacific Northwet, in the Land Between Canada and Mexico Photos: Gallery \| Albums Posts: 28,068	Originally posted by aboslett Hi all, Novice Pentax K1000 and member of the forum! Hello. I recently purchased a "Vivitar 28mm f2.8 Pentax PK mount" lens off Ebay. However, it doesn't appear to fit my Pentax K1000 and on the side of the lens, there is a "M/MD". Is this a Pentax M mount? Still figuring this easy stuff out! Sincerely, Andy I think you may have a Minolta mount lens. Quote: The Minolta SR-mount was the bayonet mounting system used in all 35mm SLR cameras made by Minolta with interchangeable manual focusing lenses. Several iterations of the mounting were produced over the decades, and as a result, the mount itself was sometimes referred to by the name of the corresponding lens generation (f.e. "MC", "MD" or "X-600") instead. Read more here: Minolta Mounts Can you post a picture of it?

06-20-2019, 07:39 PM	#5
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,406	Originally posted by aboslett Here are a few photos! Can you post a photo of the back of the lens, the lens mount area please? (With the rear plastic cap removed)

06-20-2019, 10:20 PM	#6
Just1MoreDave Site Supporter Join Date: Feb 2007 Location: Aurora, CO Photos: Gallery \| Albums Posts: 6,340	The aperture ring is also backwards from typical Pentax. I converted one from MD to PK sort of - no aperture lever - and it really wasn't worth the bother.

06-20-2019, 10:50 PM	#7
Not a Number Moderator Join Date: Mar 2012 Location: Venice, CA Posts: 10,526	I'd say it is a Minolta mount. I believe I see the MD tab on the lower right side of the aperture ring.

06-21-2019, 08:26 AM	#8
E-man Veteran Member Join Date: Aug 2012 Posts: 678	I used to shoot with Minolta gear and 'MD' would most likely indicate a Minolta mount with automatic aperture control for shooting in aperture priority or full program mode.

06-22-2019, 11:14 AM	#10
E-man Veteran Member Join Date: Aug 2012 Posts: 678	Yep, that thar be a lens for a Minolta. It looks like the latch on the aperture ring is a bit chewed up.

07-10-2019, 05:15 PM - 1 Like	#11
aboslett New Member Join Date: Jun 2019 Posts: 7 Original Poster	I realized I never said thank you for everyone's help. So thank you! The seller agreed to the return so all's well that ends well.