Guess the lens?

**Douglas_of_Sweden** · 05-22-2011, 02:45 AM

Sorry, my applogises, I copy pasted the wrong image link location for the light house, now it is the correct one.

It is not the K30 or K20 (still on my shopping list), not the K17 or K28/3.5 (great landscape lens, but not wide enough here). Not the FA20 either, though that was an alternative when I bought this lens.

It is not a Pentax, nor a Takumar.
The longer faster brother is a 30mm f1.4 which I think at least some of you have.
Now it should be easy.

**Douglas_of_Sweden** · 05-22-2011, 02:47 AM

Originally posted by shadmanaj

DA 10-17mm. If its correct, I'll tell you how i figured it out.

Originally posted by freewheeler

K17/4.0 ?
Seems to me the bented horizon and perspective tells us it is at least a 18mm or wider.
Or even a fisheye.....

Sorry, I misslead you. The incorrect image link went to a picture of the same subject (the lighthouse), shot with the DA10-17.

feverbeaver · 05-22-2011, 03:15 AM - **1 Like**

Sigma 20mm 1.8 EX DG?

DanielT74 · 05-22-2011, 03:22 AM

Yep! Or the 24/1.8.

**Douglas_of_Sweden** · 05-22-2011, 03:27 AM

Originally posted by feverbeaver

Sigma 20mm 1.8 EX DG?

And we have a winner!

axl · 05-22-2011, 04:37 AM

at least I got the focal length correct

heasley · 05-22-2011, 04:41 AM

Originally posted by Douglas_of_Sweden

And we have a winner!

I have the same lens and I don't have a high opinion of it. Very soft wide open and bad contrast.

How do you find your copy?

axl · 05-22-2011, 04:42 AM

let's keep it going.
How about this one.

Hint: shot wide open, and lens is AF

heasley · 05-22-2011, 05:16 AM

Originally posted by axl

let's keep it going.
How about this one.

Hint: Shot wide open, and lens is af

31 ltd?

axl · 05-22-2011, 05:30 AM

Originally posted by heasley

31 ltd?

nope...

heasley · 05-22-2011, 05:40 AM

Originally posted by axl

nope...

Zoom or prime?

**Douglas_of_Sweden** · 05-22-2011, 05:55 AM

Originally posted by heasley

I have the same lens and I don't have a high opinion of it. Very soft wide open and bad contrast.

How do you find your copy?

Quite good actually. Pentax has nothing similar in their current line. What I looked for was an equivalent of a 28/2, but for APS-C. Of course wide open it lose in contrast and sharpness, but that is sort of an optical law. It surprised me how good the corners were, but it is of course a FF lens. I have only two compains: it is large, very heavy...and at low temperatures (say below -15C) the autofocus sometimes give in. As well built as plastic can be.

axl · 05-22-2011, 06:02 AM

Originally posted by heasley

Zoom or prime?

I won't give that away quite yet

heasley · 05-22-2011, 06:15 AM

Originally posted by Douglas_of_Sweden

Quite good actually. Pentax has nothing similar in their current line. What I looked for was an equivalent of a 28/2, but for APS-C. Of course wide open it lose in contrast and sharpness, but that is sort of an optical law. It surprised me how good the corners were, but it is of course a FF lens. I have only two compains: it is large, very heavy...and at low temperatures (say below -15C) the autofocus sometimes give in. As well built as plastic can be.

Can't say that I've had mine at -15C

Next to my other 2 primes (FA43 & Fa77) it is very weak.

I think I may have a bad copy.

axl · 05-22-2011, 06:34 AM

Originally posted by heasley

Can't say that I've had mine at -15C

Next to my other 2 primes (FA43 & Fa77) it is very weak.

I think I may have a bad copy.

next to 43 + 77 many lenses will seem weak

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05-22-2011, 02:45 AM	#271
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Sorry, my applogises, I copy pasted the wrong image link location for the light house, now it is the correct one. It is not the K30 or K20 (still on my shopping list), not the K17 or K28/3.5 (great landscape lens, but not wide enough here). Not the FA20 either, though that was an alternative when I bought this lens. It is not a Pentax, nor a Takumar. The longer faster brother is a 30mm f1.4 which I think at least some of you have. Now it should be easy.

05-22-2011, 02:47 AM	#272
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Originally posted by shadmanaj DA 10-17mm. If its correct, I'll tell you how i figured it out. Originally posted by freewheeler K17/4.0 ? Seems to me the bented horizon and perspective tells us it is at least a 18mm or wider. Or even a fisheye..... Sorry, I misslead you. The incorrect image link went to a picture of the same subject (the lighthouse), shot with the DA10-17.

05-22-2011, 03:15 AM - 1 Like	#273
feverbeaver Senior Member Join Date: Aug 2008 Location: Langen, Germany Photos: Gallery Posts: 106	Sigma 20mm 1.8 EX DG?

05-22-2011, 03:22 AM	#274
DanielT74 Veteran Member Join Date: Nov 2008 Location: Australia Photos: Albums Posts: 1,377	Yep! Or the 24/1.8.

05-22-2011, 03:27 AM	#275
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Originally posted by feverbeaver Sigma 20mm 1.8 EX DG? And we have a winner!

05-22-2011, 04:37 AM	#276
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	at least I got the focal length correct

05-22-2011, 04:41 AM	#277
heasley Forum Member Join Date: May 2010 Location: Brisbane Posts: 99	Originally posted by Douglas_of_Sweden And we have a winner! I have the same lens and I don't have a high opinion of it. Very soft wide open and bad contrast. How do you find your copy?

05-22-2011, 04:42 AM	#278
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	let's keep it going. How about this one. Hint: shot wide open, and lens is AF

05-22-2011, 05:16 AM	#279
heasley Forum Member Join Date: May 2010 Location: Brisbane Posts: 99	Originally posted by axl let's keep it going. How about this one. Hint: Shot wide open, and lens is af 31 ltd?

05-22-2011, 05:30 AM	#280
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	Originally posted by heasley 31 ltd? nope...

05-22-2011, 05:40 AM	#281
heasley Forum Member Join Date: May 2010 Location: Brisbane Posts: 99	Originally posted by axl nope... Zoom or prime?

05-22-2011, 05:55 AM	#282
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	Originally posted by heasley I have the same lens and I don't have a high opinion of it. Very soft wide open and bad contrast. How do you find your copy? Quite good actually. Pentax has nothing similar in their current line. What I looked for was an equivalent of a 28/2, but for APS-C. Of course wide open it lose in contrast and sharpness, but that is sort of an optical law. It surprised me how good the corners were, but it is of course a FF lens. I have only two compains: it is large, very heavy...and at low temperatures (say below -15C) the autofocus sometimes give in. As well built as plastic can be.

05-22-2011, 06:02 AM	#283
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	Originally posted by heasley Zoom or prime? I won't give that away quite yet

05-22-2011, 06:15 AM	#284
heasley Forum Member Join Date: May 2010 Location: Brisbane Posts: 99	Originally posted by Douglas_of_Sweden Quite good actually. Pentax has nothing similar in their current line. What I looked for was an equivalent of a 28/2, but for APS-C. Of course wide open it lose in contrast and sharpness, but that is sort of an optical law. It surprised me how good the corners were, but it is of course a FF lens. I have only two compains: it is large, very heavy...and at low temperatures (say below -15C) the autofocus sometimes give in. As well built as plastic can be. Can't say that I've had mine at -15C Next to my other 2 primes (FA43 & Fa77) it is very weak. I think I may have a bad copy.

05-22-2011, 06:34 AM	#285
axl Veteran Member Join Date: Mar 2007 Location: Nove Zamky, Slovakia Photos: Gallery \| Albums Posts: 7,183	Originally posted by heasley Can't say that I've had mine at -15C Next to my other 2 primes (FA43 & Fa77) it is very weak. I think I may have a bad copy. next to 43 + 77 many lenses will seem weak