Need help identifying lens in picture

**BlueJayCom** · 08-30-2022, 07:54 PM

Hello, someone on a local sell forum has posted a picture with some pentax lenses on it and I need some assistance guessing what the middle lens is. The guy has this stuff in storage and doesn't know what it is and isn't willing to check what it is unless I go with him (annoying I know). I'm looking for a faster lens and this seems to be a prime thats slightly bigger so this might be something I'm looking for. Also yes I know the image isn't very high resolution, but it's all thats on the post.

Cheers

Attached Images

MarkJerling · 08-30-2022, 08:33 PM - **3 Likes**

I can't tell from the photo, but it looks "most" like a 50mm F1.7 lens. But, I'm not sure that that's what it is. I'm only saying that based upon the focus ring knurling.
It looks quite dirty though, so I'd worry about fungus, etc.

My advice would be: If the seller can't be bothered to actually tell you what he's selling, unless if he's practically giving the stuff away, avoid.

**UncleVanya** · 08-30-2022, 09:10 PM - **2 Likes**

Like Mark says avoid. I don’t think it is faster than 2.8. It looks to me like the f stops are 2.8, 4, 5.6, 8 etc. I would guess a Tokina EL 28/2.8:

Tokina EL 28mm f2.8 Lens Reviews - Tokina Lenses - Pentax Lens Review Database

But that’s a seriously wild guess.

pschlute · 08-30-2022, 09:20 PM - **2 Likes**

I agree with Mark

If unloved lenses are packed away in storage without due care it is likely they are riddled with fungus. If the lens is a M 50mm 1.7 (which I think it is) you can pick up clean examples for peanuts on ebay.

I did once buy a "job lot" like this because it contained a rare lens. I binned half of the other lenses because the cost of cleaning would have outweighed the value.

Last edited by pschlute; 08-31-2022 at 12:53 AM.

**tonyzoc** · 08-31-2022, 03:13 AM - **1 Like**

I'm guessing a Vivitar 28/2.8 and 80-200/4.5. This was a common pair of cheap lenses to go with the 50mm purchased with the camera.

pschlute · 08-31-2022, 03:37 AM - **1 Like**

On looking again I don't think the prime lens is a Pentax at all. No white plastic lens mount guide on it.

**UncleVanya** · 08-31-2022, 05:48 AM - **1 Like**

Originally posted by pschlute

On looking again I don't think the prime lens is a Pentax at all. No white plastic lens mount guide on it.

Exactly why I said Tokina… the slope angle on the front near the filter is also the wrong shape.

DeadJohn · 08-31-2022, 09:51 AM - **1 Like**

+1 that the middle lens is filthy and has high risk of fungus. Save yourself the trip to inspect it unless the seller is selling for very cheap.

The knobby grip on the other lens to the left looks like it's decomposing. That doesn't affect lens operation but depending on how bad it could be a sticky mess to use. You may need to cut the grip off and rewrap the barrel with grip tape.

**GUB** · 08-31-2022, 02:15 PM - **2 Likes**

I am thinking a Tokina 28mm is not a bad guess considering how common they are.
It appears to have a uv filter in place. That often protects the lens that is stored in a less than desirable spot but can also trap and enhance exist fungus problems. Many times you can pick up a horrid looking lens, remove the filter and there is a pristine lens under there
If you enjoy the thrill of the hunt then go for it. Ignore these doomsayers.
The trick is if it was a great catch come back and tell us - otherwise stay quiet

A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount.

**UncleVanya** · 08-31-2022, 04:53 PM

Originally posted by GUB

A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount.

Amen. The k mount cap will actually fit several other lenses - and it could just be an accessory unrelated to the lenses.

**BlueJayCom** · 09-02-2022, 02:58 PM

Originally posted by GUB

I am thinking a Tokina 28mm is not a bad guess considering how common they are.
It appears to have a uv filter in place. That often protects the lens that is stored in a less than desirable spot but can also trap and enhance exist fungus problems. Many times you can pick up a horrid looking lens, remove the filter and there is a pristine lens under there
If you enjoy the thrill of the hunt then go for it. Ignore these doomsayers.
The trick is if it was a great catch come back and tell us - otherwise stay quiet

A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount.

Oh yea for sure, when I bought a laowa 9mm for my m50 the seller put a nikon f rearcap on it for some reason lol.

**BlueJayCom** · 09-02-2022, 03:04 PM

Originally posted by UncleVanya

Like Mark says avoid. I don’t think it is faster than 2.8. It looks to me like the f stops are 2.8, 4, 5.6, 8 etc. I would guess a Tokina EL 28/2.8:

Tokina EL 28mm f2.8 Lens Reviews - Tokina Lenses - Pentax Lens Review Database

But that’s a seriously wild guess.

Yea fair enough, based on the replies if it's a 50mm 1.7 I don't care since I already have a really good one and if its a 28mm I also don't care since I have the pentax 28mm 2.8 in good condition. Looks like I'll just skip this guy entirely. I was hoping it was something like a 50mm 1.4 that I didn't recognise but in hindsight I think it's a little big bigger then the lens in the picture is.

**GUB** · 09-02-2022, 09:02 PM

Originally posted by BlueJayCom

Yea fair enough, based on the replies if it's a 50mm 1.7 I don't care since I already have a really good one and if its a 28mm I also don't care since I have the pentax 28mm 2.8 in good condition. Looks like I'll just skip this guy entirely. I was hoping it was something like a 50mm 1.4 that I didn't recognise but in hindsight I think it's a little big bigger then the lens in the picture is.

The way I see it is the most likely way you could luck in is that it could turn out to be a 24mm or a 35mm - they can all look similar.
The other way you could be a winner is that awesome photo you took going to his place!
And also that spottie with an 8 element 50 that was also sitting there that he had forgotten about?
Y'just never know!!

Lord Lucan · 09-03-2022, 02:24 AM

Originally posted by UncleVanya

I would guess a Tokina EL 28/2.8

The picture of that Tokina lens in the PF review shows it to have four rows of knobbles on the rubber focussing ring, but the lens the OP pictured has only two rows. Also, the filter on the OP's lens seems to say 49mm (or 48?) on it and the Tokina uses 52mm.

AFAIK no Pentax lens of that era, other than the 40mm pancake, had less than three rows of knobbles http://www.lucan.org.uk/Images/IMGP6726_is.jpeg, and the M 50mm F1.4 had four.

**GUB** · 09-03-2022, 03:08 AM - **1 Like**

Originally posted by Lord Lucan

The picture of that Tokina lens in the PF review shows it to have four rows of knobbles on the rubber focussing ring, but the lens the OP pictured has only two rows. Also, the filter on the OP's lens seems to say 49mm (or 48?) on it and the Tokina uses 52mm.

AFAIK no Pentax lens of that era, other than the 40mm pancake, had less than three rows of knobbles http://www.lucan.org.uk/Images/IMGP6726_is.jpeg, and the M 50mm F1.4 had four.

Yes the nearest I could find here is a 3 row Tokina 24mm 2.8 Kmount A series.

08-30-2022, 07:54 PM	#1
BlueJayCom Site Supporter Join Date: Aug 2022 Posts: 7	Need help identifying lens in picture Hello, someone on a local sell forum has posted a picture with some pentax lenses on it and I need some assistance guessing what the middle lens is. The guy has this stuff in storage and doesn't know what it is and isn't willing to check what it is unless I go with him (annoying I know). I'm looking for a faster lens and this seems to be a prime thats slightly bigger so this might be something I'm looking for. Also yes I know the image isn't very high resolution, but it's all thats on the post. Cheers Attached Images

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08-30-2022, 08:33 PM - 3 Likes	#2
MarkJerling Moderator Site Supporter Join Date: May 2012 Location: Wairarapa, New Zealand Photos: Gallery \| Albums Posts: 20,423	I can't tell from the photo, but it looks "most" like a 50mm F1.7 lens. But, I'm not sure that that's what it is. I'm only saying that based upon the focus ring knurling. It looks quite dirty though, so I'd worry about fungus, etc. My advice would be: If the seller can't be bothered to actually tell you what he's selling, unless if he's practically giving the stuff away, avoid.

08-30-2022, 09:10 PM - 2 Likes	#3
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,468	Like Mark says avoid. I don’t think it is faster than 2.8. It looks to me like the f stops are 2.8, 4, 5.6, 8 etc. I would guess a Tokina EL 28/2.8: Tokina EL 28mm f2.8 Lens Reviews - Tokina Lenses - Pentax Lens Review Database But that’s a seriously wild guess.

08-30-2022, 09:20 PM - 2 Likes	#4
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,219	I agree with Mark If unloved lenses are packed away in storage without due care it is likely they are riddled with fungus. If the lens is a M 50mm 1.7 (which I think it is) you can pick up clean examples for peanuts on ebay. I did once buy a "job lot" like this because it contained a rare lens. I binned half of the other lenses because the cost of cleaning would have outweighed the value. Last edited by pschlute; 08-31-2022 at 12:53 AM.

08-31-2022, 03:13 AM - 1 Like	#5
tonyzoc Loyal Site Supporter Join Date: Jul 2018 Posts: 992	I'm guessing a Vivitar 28/2.8 and 80-200/4.5. This was a common pair of cheap lenses to go with the 50mm purchased with the camera.

08-31-2022, 03:37 AM - 1 Like	#6
pschlute Moderator Loyal Site Supporter Join Date: Mar 2007 Location: Surrey, UK Photos: Gallery Posts: 8,219	On looking again I don't think the prime lens is a Pentax at all. No white plastic lens mount guide on it.

08-31-2022, 05:48 AM - 1 Like	#7
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,468	Originally posted by pschlute On looking again I don't think the prime lens is a Pentax at all. No white plastic lens mount guide on it. Exactly why I said Tokina… the slope angle on the front near the filter is also the wrong shape.

08-31-2022, 09:51 AM - 1 Like	#8
DeadJohn Pentaxian Join Date: Jan 2011 Location: New York Posts: 4,834	+1 that the middle lens is filthy and has high risk of fungus. Save yourself the trip to inspect it unless the seller is selling for very cheap. The knobby grip on the other lens to the left looks like it's decomposing. That doesn't affect lens operation but depending on how bad it could be a sticky mess to use. You may need to cut the grip off and rewrap the barrel with grip tape.

08-31-2022, 02:15 PM - 2 Likes	#9
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,762	I am thinking a Tokina 28mm is not a bad guess considering how common they are. It appears to have a uv filter in place. That often protects the lens that is stored in a less than desirable spot but can also trap and enhance exist fungus problems. Many times you can pick up a horrid looking lens, remove the filter and there is a pristine lens under there If you enjoy the thrill of the hunt then go for it. Ignore these doomsayers. The trick is if it was a great catch come back and tell us - otherwise stay quiet A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount.

08-31-2022, 04:53 PM	#10
UncleVanya Loyal Site Supporter Join Date: Jul 2014 Photos: Gallery \| Albums Posts: 28,468	Originally posted by GUB A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount. Amen. The k mount cap will actually fit several other lenses - and it could just be an accessory unrelated to the lenses.

09-02-2022, 02:58 PM	#11
BlueJayCom Site Supporter Join Date: Aug 2022 Posts: 7 Original Poster	Originally posted by GUB I am thinking a Tokina 28mm is not a bad guess considering how common they are. It appears to have a uv filter in place. That often protects the lens that is stored in a less than desirable spot but can also trap and enhance exist fungus problems. Many times you can pick up a horrid looking lens, remove the filter and there is a pristine lens under there If you enjoy the thrill of the hunt then go for it. Ignore these doomsayers. The trick is if it was a great catch come back and tell us - otherwise stay quiet A final note - the existence of a PK lenscap doesn't mean it is necessarily K mount. Oh yea for sure, when I bought a laowa 9mm for my m50 the seller put a nikon f rearcap on it for some reason lol.

09-02-2022, 03:04 PM	#12
BlueJayCom Site Supporter Join Date: Aug 2022 Posts: 7 Original Poster	Originally posted by UncleVanya Like Mark says avoid. I don’t think it is faster than 2.8. It looks to me like the f stops are 2.8, 4, 5.6, 8 etc. I would guess a Tokina EL 28/2.8: Tokina EL 28mm f2.8 Lens Reviews - Tokina Lenses - Pentax Lens Review Database But that’s a seriously wild guess. Yea fair enough, based on the replies if it's a 50mm 1.7 I don't care since I already have a really good one and if its a 28mm I also don't care since I have the pentax 28mm 2.8 in good condition. Looks like I'll just skip this guy entirely. I was hoping it was something like a 50mm 1.4 that I didn't recognise but in hindsight I think it's a little big bigger then the lens in the picture is.

09-02-2022, 09:02 PM	#13
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,762	Originally posted by BlueJayCom Yea fair enough, based on the replies if it's a 50mm 1.7 I don't care since I already have a really good one and if its a 28mm I also don't care since I have the pentax 28mm 2.8 in good condition. Looks like I'll just skip this guy entirely. I was hoping it was something like a 50mm 1.4 that I didn't recognise but in hindsight I think it's a little big bigger then the lens in the picture is. The way I see it is the most likely way you could luck in is that it could turn out to be a 24mm or a 35mm - they can all look similar. The other way you could be a winner is that awesome photo you took going to his place! And also that spottie with an 8 element 50 that was also sitting there that he had forgotten about? Y'just never know!!

09-03-2022, 02:24 AM	#14
Lord Lucan Pentaxian Join Date: Sep 2017 Location: South Wales Photos: Gallery Posts: 2,979	Originally posted by UncleVanya I would guess a Tokina EL 28/2.8 The picture of that Tokina lens in the PF review shows it to have four rows of knobbles on the rubber focussing ring, but the lens the OP pictured has only two rows. Also, the filter on the OP's lens seems to say 49mm (or 48?) on it and the Tokina uses 52mm. AFAIK no Pentax lens of that era, other than the 40mm pancake, had less than three rows of knobbles http://www.lucan.org.uk/Images/IMGP6726_is.jpeg, and the M 50mm F1.4 had four.

09-03-2022, 03:08 AM - 1 Like	#15
GUB Loyal Site Supporter Join Date: Aug 2012 Location: Wanganui Photos: Gallery \| Albums Posts: 5,762	Originally posted by Lord Lucan The picture of that Tokina lens in the PF review shows it to have four rows of knobbles on the rubber focussing ring, but the lens the OP pictured has only two rows. Also, the filter on the OP's lens seems to say 49mm (or 48?) on it and the Tokina uses 52mm. AFAIK no Pentax lens of that era, other than the 40mm pancake, had less than three rows of knobbles http://www.lucan.org.uk/Images/IMGP6726_is.jpeg, and the M 50mm F1.4 had four. Yes the nearest I could find here is a 3 row Tokina 24mm 2.8 Kmount A series.