HD Pentax-DA Fish-Eye 10-17mm f/3.5-4.5 ED

**mlt** · 07-08-2019, 03:44 PM

Read the press release - hood removal is to allow nearly circular images on K-1. Now we need test images over the entire focal length range, and Ricoh to do an update to the SMC versions to remove the fixed hood.

**luftfluss** · 07-08-2019, 04:03 PM

Originally posted by mlt

Ricoh to do an update to the SMC versions to remove the fixed hood.

How???

dbs · 07-08-2019, 04:24 PM

Originally posted by mlt

Read the press release - hood removal is to allow nearly circular images on K-1. Now we need test images over the entire focal length range, and Ricoh to do an update to the SMC versions to remove the fixed hood.

Hi MLT

Just revamp the hood ?
A new body sleave would have to be machined to change hood from fixed to removable.
Some say the new HD version is fatter than a SMC version
I would maybe change ..if.. the purple fringing is non existant

Dave

**TwoUptons** · 07-08-2019, 04:57 PM

If it’s feasible, I find it more likely someone will do it as a 3D printed part or something like that rather than Ricoh releasing a retrofit.

Every lens modified is a lens Ricoh doesn’t sell...

-Eric

Rico · 07-08-2019, 05:56 PM

Originally posted by Trickortreat

No, my expectations are something else. You could re read my posts to see exactly what, cause 0 lenses i have issues with have quick shift.
Ill stick for a while but if Ricoh cant get gear i want on the market I'll look elsewhere.

Trickortreat here is your first post in this thread to what your expectations is in future DA lenses is to do away with Quick-Shift:

Quote:

I really wish they start updatint the mechanical part of DA lenses rather than coatings and cosmetics.
Rotating focusing ring during af shoul really be a thing of the past.

**BruceBanner** · 07-08-2019, 06:12 PM

Originally posted by Sandy Hancock

The DA*55 vignettes (slightly) even without the hood. Changing the hood isn’t going to fix anything.

Nonetheless it does seem to get some kind of press release mention;

"The exterior of the lens has been redesigned to match the design of the latest PENTAX K-mount digital SLR models, and also to make its lens hood removable. When mounted on a PENTAX K-1 or PENTAX K-1 Mark II camera body, the photographer can remove the lens hood to produce nearly circular fish-eye images, expanding the range for photographic expressions."

I guess it's better than nothing lol. I mean I'd still like a hood with it on the K-1 haha.

Rico · 07-08-2019, 06:12 PM

Originally posted by Sandy Hancock

The DA*55 vignettes (slightly) even without the hood. Changing the hood isn’t going to fix anything.

That is not the sentiment to how people reviewed the DA*55 using the K-1. They all say it is excellent except for the hood.

MegaPower · 07-08-2019, 06:31 PM

tokina already did the "FF" conversion way back ago, for canon, nikon.
It is still a mystery whether the lens is built/design by Tokina.

**caliscouser** · 07-08-2019, 07:57 PM

Groove for front element heater???

Sandy Hancock · 07-08-2019, 08:02 PM

Originally posted by Rico

That is not the sentiment to how people reviewed the DA*55 using the K-1. They all say it is excellent except for the hood.

I have been shooting my DA*55 on the K-1 for over three years. It is excellent, but not perfect. In some instances there is a small hard vignette in the corners, even without the hood. I always use the hood anyway.

Sandy Hancock · 07-08-2019, 08:04 PM

Originally posted by BruceBanner

Nonetheless it does seem to get some kind of press release mention;

"The exterior of the lens has been redesigned to match the design of the latest PENTAX K-mount digital SLR models, and also to make its lens hood removable. When mounted on a PENTAX K-1 or PENTAX K-1 Mark II camera body, the photographer can remove the lens hood to produce nearly circular fish-eye images, expanding the range for photographic expressions."

I guess it's better than nothing lol. I mean I'd still like a hood with it on the K-1 haha.

The comment of mine that you quoted is about a different lens though Eddy

JPT · 07-08-2019, 08:27 PM - **1 Like**

More images and info here. (Japanese)
???????? HD PENTAX-DA FISH-EYE10-17mm F3.5-4.5 ED ?????? - ??????????by????????

There’s a lot information on full frame coverage with and without the hood, but I haven’t had time to read it yet.

Mistral75 · 07-08-2019, 10:37 PM - **3 Likes**

Originally posted by MegaPower

tokina already did the "FF" conversion way back ago, for canon, nikon.
It is still a mystery whether the lens is built/design by Tokina.

It is not: designed by Pentax, redesigned by Ricoh Imaging, built by Ricoh Imaging.

The optical formula was patented by Pentax and the lens is assembled in Vietnam. Tokina use the optical formula under licence and build their own version(s).

The US patent application published on March the 1st, 2007: FISHEYE LENS SYSTEM AND A FISHEYE ZOOM LENS SYSTEM

The inventors are Messrs Takayuki Ito (co-inventor of, inter alia, the smc Pentax-FA 31mm f/1.8 AL Limited and the smc Pentax-DA★ 60-250mm f/4 ED [IF] SDM) and Jun Irakawa, whom one doesn't need to introduce.

Mistral75 · 07-08-2019, 10:48 PM - **1 Like**

Originally posted by caliscouser

Groove for front element heater???

The answer is no and it comes from the Yaotomi report linked by JPT:

'Is the groove just below the hood for a lens heater? I asked the question: it would physically interfere with the focus ring. Unlike the 11-18mm, it's not designed with lens heater in mind.'

Trickortreat · 07-08-2019, 11:57 PM

Originally posted by Rico

Trickortreat here is your first post in this thread to what your expectations is in future DA lenses is to do away with Quick-Shift:

Wow. I like your reading comprehention :/
You might try to re read that again...

07-08-2019, 03:44 PM	#151
mlt Site Supporter Join Date: Dec 2007 Posts: 1,159	New 10-17mm lens update Read the press release - hood removal is to allow nearly circular images on K-1. Now we need test images over the entire focal length range, and Ricoh to do an update to the SMC versions to remove the fixed hood.

07-08-2019, 07:57 PM	#159
caliscouser Site Supporter Join Date: Sep 2014 Location: SF Bay Area, CA Photos: Albums Posts: 1,037	Groove for front element heater??? Attached Images

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07-08-2019, 04:03 PM	#152
luftfluss Site Supporter Join Date: Jun 2011 Location: NJ Photos: Gallery \| Albums Posts: 11,627	Originally posted by mlt Ricoh to do an update to the SMC versions to remove the fixed hood. How???

07-08-2019, 04:24 PM	#153
dbs Pentaxian Join Date: Jun 2010 Location: Clare Valley S A Photos: Albums Posts: 7,565	Originally posted by mlt Read the press release - hood removal is to allow nearly circular images on K-1. Now we need test images over the entire focal length range, and Ricoh to do an update to the SMC versions to remove the fixed hood. Hi MLT Just revamp the hood ? A new body sleave would have to be machined to change hood from fixed to removable. Some say the new HD version is fatter than a SMC version I would maybe change ..if.. the purple fringing is non existant Dave

07-08-2019, 04:57 PM	#154
TwoUptons Loyal Site Supporter Join Date: Nov 2015 Photos: Albums Posts: 4,224	If it’s feasible, I find it more likely someone will do it as a 3D printed part or something like that rather than Ricoh releasing a retrofit. Every lens modified is a lens Ricoh doesn’t sell... -Eric

07-08-2019, 05:56 PM	#155
Rico Veteran Member Join Date: Mar 2007 Posts: 1,205	Originally posted by Trickortreat No, my expectations are something else. You could re read my posts to see exactly what, cause 0 lenses i have issues with have quick shift. Ill stick for a while but if Ricoh cant get gear i want on the market I'll look elsewhere. Trickortreat here is your first post in this thread to what your expectations is in future DA lenses is to do away with Quick-Shift: Quote: I really wish they start updatint the mechanical part of DA lenses rather than coatings and cosmetics. Rotating focusing ring during af shoul really be a thing of the past.

07-08-2019, 06:12 PM	#156
BruceBanner Site Supporter Join Date: Dec 2015 Posts: 5,405	Originally posted by Sandy Hancock The DA*55 vignettes (slightly) even without the hood. Changing the hood isn’t going to fix anything. Nonetheless it does seem to get some kind of press release mention; "The exterior of the lens has been redesigned to match the design of the latest PENTAX K-mount digital SLR models, and also to make its lens hood removable. When mounted on a PENTAX K-1 or PENTAX K-1 Mark II camera body, the photographer can remove the lens hood to produce nearly circular fish-eye images, expanding the range for photographic expressions." I guess it's better than nothing lol. I mean I'd still like a hood with it on the K-1 haha.

07-08-2019, 06:12 PM	#157
Rico Veteran Member Join Date: Mar 2007 Posts: 1,205	Originally posted by Sandy Hancock The DA55 vignettes (slightly) even without the hood. Changing the hood isn’t going to fix anything. That is not the sentiment to how people reviewed the DA55 using the K-1. They all say it is excellent except for the hood.

07-08-2019, 06:31 PM	#158
MegaPower Veteran Member Join Date: May 2010 Location: Hong Kong / Irvine, CA Photos: Gallery \| Albums Posts: 636	tokina already did the "FF" conversion way back ago, for canon, nikon. It is still a mystery whether the lens is built/design by Tokina.

07-08-2019, 08:02 PM	#160
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,275	Originally posted by Rico That is not the sentiment to how people reviewed the DA55 using the K-1. They all say it is excellent except for the hood. I have been shooting my DA55 on the K-1 for over three years. It is excellent, but not perfect. In some instances there is a small hard vignette in the corners, even without the hood. I always use the hood anyway.

07-08-2019, 08:04 PM	#161
Sandy Hancock Moderator Site Supporter Join Date: Feb 2012 Location: Adelaide Hills, South Australia Photos: Gallery \| Albums Posts: 11,275	Originally posted by BruceBanner Nonetheless it does seem to get some kind of press release mention; "The exterior of the lens has been redesigned to match the design of the latest PENTAX K-mount digital SLR models, and also to make its lens hood removable. When mounted on a PENTAX K-1 or PENTAX K-1 Mark II camera body, the photographer can remove the lens hood to produce nearly circular fish-eye images, expanding the range for photographic expressions." I guess it's better than nothing lol. I mean I'd still like a hood with it on the K-1 haha. The comment of mine that you quoted is about a different lens though Eddy

07-08-2019, 08:27 PM - 1 Like	#162
JPT Pentaxian Join Date: Jan 2012 Location: Tokyo Photos: Gallery Posts: 2,821	More images and info here. (Japanese) ???????? HD PENTAX-DA FISH-EYE10-17mm F3.5-4.5 ED ?????? - ??????????by???????? There’s a lot information on full frame coverage with and without the hood, but I haven’t had time to read it yet.

07-08-2019, 10:37 PM - 3 Likes	#163
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527 Original Poster	Originally posted by MegaPower tokina already did the "FF" conversion way back ago, for canon, nikon. It is still a mystery whether the lens is built/design by Tokina. It is not: designed by Pentax, redesigned by Ricoh Imaging, built by Ricoh Imaging. The optical formula was patented by Pentax and the lens is assembled in Vietnam. Tokina use the optical formula under licence and build their own version(s). The US patent application published on March the 1st, 2007: FISHEYE LENS SYSTEM AND A FISHEYE ZOOM LENS SYSTEM The inventors are Messrs Takayuki Ito (co-inventor of, inter alia, the smc Pentax-FA 31mm f/1.8 AL Limited and the smc Pentax-DA★ 60-250mm f/4 ED [IF] SDM) and Jun Irakawa, whom one doesn't need to introduce.

07-08-2019, 10:48 PM - 1 Like	#164
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527 Original Poster	Originally posted by caliscouser Groove for front element heater??? The answer is no and it comes from the Yaotomi report linked by *JPT: 'Is the groove just below the hood for a lens heater? I asked the question: it would physically interfere with the focus ring. Unlike the 11-18mm, it's not designed with lens heater in mind.*'

07-08-2019, 11:57 PM	#165
Trickortreat Veteran Member Join Date: Dec 2013 Posts: 561	Originally posted by Rico Trickortreat here is your first post in this thread to what your expectations is in future DA lenses is to do away with Quick-Shift: Wow. I like your reading comprehention :/ You might try to re read that again...