A fish eye with a hood?

Big Dave · 04-07-2012, 12:47 PM

I have a non-smc 17mm fish eye that I really like. On the K20 it is 120 degrees instead of 180 degrees. Used carefully it takes some great wide angle shots. The one limitation is that flare can be a problem in brite sun light due to the lack of smc coatings. I can't complain since I only payed about $50 for a mint lens. My solution is to fit a hood fashioned from a spray can cap. Due to the cropped sensor a hood can be used without vignetting. It seems to work well for me.

Attached Images

View Picture EXIF

Last edited by Big Dave; 04-07-2012 at 08:07 PM. Reason: sp

**demondata** · 04-07-2012, 01:04 PM

Great solution and is probably just the requisite deep black!

stevebrot · 04-07-2012, 02:36 PM

Originally posted by Big Dave

I can't complain since I only payed about $50 for a mint lens.

No! You can't complain at all. I have never seen one of those in good condition go for less than $400!

Excellent hood solution, BTW!

Steve

Giklab · 04-07-2012, 03:02 PM

Originally posted by stevebrot

No! You can't complain at all. I have never seen one of those in good condition go for less than $400!

Ouch.

Great hood, the APS-C crop might actually be good for something :P

Wheatfield · 04-07-2012, 09:57 PM

Originally posted by Big Dave

I have a non-smc 17mm fish eye that I really like. On the K20 it is 120 degrees instead of 180 degrees. Used carefully it takes some great wide angle shots. The one limitation is that flare can be a problem in brite sun light due to the lack of smc coatings. I can't complain since I only payed about $50 for a mint lens. My solution is to fit a hood fashioned from a spray can cap. Due to the cropped sensor a hood can be used without vignetting. It seems to work well for me.

I have that lens too!!! I did some butchery to it, and attached a K adaptor to it permanently using the screw that normally holds the spring on as the jam screw. I cut a small notch in the mount to take the body lock pin. On ap-c, I expect a hood designed for a 24mm lens on 35mm would be a good size.

Big Dave · 04-08-2012, 09:24 PM

Originally posted by Wheatfield

I have that lens too!!! I did some butchery to it, and attached a K adaptor to it permanently using the screw that normally holds the spring on as the jam screw. I cut a small notch in the mount to take the body lock pin. On ap-c, I expect a hood designed for a 24mm lens on 35mm would be a good size.

It doesn't have any threads for attaching a hood. My plastic hood just is a slip fit over the filter ring. I use a Pentax adapter for mounting. A small peice of scotch tape holds the filter in place. It was very easy to accidentally engage one of the colored filters. I did mount a K adapter permanently on my 50mm 1.4 and notched it for the latch.

RioRico · 04-08-2012, 09:32 PM

Another hooded fisheye: the Sigma-made T-mount 12mm f/8 fixed-focus fisheye with Waterhouse stops, variously branded as Vemar, Spiratone, Vivitar, etc. Are two versions, distinguished by the lens cap. Version 1 has a one-piece metal cap like a flattened cone. Version 2 has a two-piece assembly: a wide metal ring, and a flat metal round. The ring alone acts as both a fairly effective hood, and as an image boundary. On FF cams it gives a full-circle image. On APS-C cams it's just... strange.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
K-r + fish-eye	brian may	Pentax K-r	7	03-31-2012 02:31 PM
For Sale - Sold: DA 10-17MM F3.5-4.5 Fish-Eye ED [IF] (US)	atupdate	Sold Items	2	08-16-2010 04:08 AM
Pentax-A 16mm fish eye vs. 17mm Fish-eye-Takumar	Nick Siebers	Pentax SLR Lens Discussion	4	05-26-2010 03:51 PM
Aircraft fish-eye photo without fish-eye lens....	7.62lew	Post Your Photos!	16	05-17-2009 08:38 PM
Fish-eye versus non-fish-eye @ a similar focal length.	Frakkas	Pentax SLR Lens Discussion	5	07-19-2007 05:13 AM

04-07-2012, 01:04 PM	#2
demondata Site Supporter Join Date: Oct 2006 Location: Aurora, Ontario, Canada Photos: Gallery Posts: 632	Great solution and is probably just the requisite deep black!

04-07-2012, 02:36 PM	#3
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by Big Dave I can't complain since I only payed about $50 for a mint lens. No! You can't complain at all. I have never seen one of those in good condition go for less than $400! Excellent hood solution, BTW! Steve

04-07-2012, 03:02 PM	#4
Giklab Veteran Member Join Date: Jan 2012 Location: Slovenia Photos: Gallery Posts: 2,182	Originally posted by stevebrot No! You can't complain at all. I have never seen one of those in good condition go for less than $400! Ouch. Great hood, the APS-C crop might actually be good for something :P

04-07-2012, 09:57 PM	#5
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,981	Originally posted by Big Dave I have a non-smc 17mm fish eye that I really like. On the K20 it is 120 degrees instead of 180 degrees. Used carefully it takes some great wide angle shots. The one limitation is that flare can be a problem in brite sun light due to the lack of smc coatings. I can't complain since I only payed about $50 for a mint lens. My solution is to fit a hood fashioned from a spray can cap. Due to the cropped sensor a hood can be used without vignetting. It seems to work well for me. I have that lens too!!! I did some butchery to it, and attached a K adaptor to it permanently using the screw that normally holds the spring on as the jam screw. I cut a small notch in the mount to take the body lock pin. On ap-c, I expect a hood designed for a 24mm lens on 35mm would be a good size.

04-08-2012, 09:24 PM	#6
Big Dave Veteran Member Join Date: Jan 2008 Location: San Antonio, Texas Photos: Gallery Posts: 547 Original Poster	Originally posted by Wheatfield I have that lens too!!! I did some butchery to it, and attached a K adaptor to it permanently using the screw that normally holds the spring on as the jam screw. I cut a small notch in the mount to take the body lock pin. On ap-c, I expect a hood designed for a 24mm lens on 35mm would be a good size. It doesn't have any threads for attaching a hood. My plastic hood just is a slip fit over the filter ring. I use a Pentax adapter for mounting. A small peice of scotch tape holds the filter in place. It was very easy to accidentally engage one of the colored filters. I did mount a K adapter permanently on my 50mm 1.4 and notched it for the latch.

04-08-2012, 09:32 PM	#7
RioRico Veteran Member Join Date: Jun 2008 Location: Limbo, California Posts: 11,263	Another hooded fisheye: the Sigma-made T-mount 12mm f/8 fixed-focus fisheye with Waterhouse stops, variously branded as Vemar, Spiratone, Vivitar, etc. Are two versions, distinguished by the lens cap. Version 1 has a one-piece metal cap like a flattened cone. Version 2 has a two-piece assembly: a wide metal ring, and a flat metal round. The ring alone acts as both a fairly effective hood, and as an image boundary. On FF cams it gives a full-circle image. On APS-C cams it's just... strange.