Ricoh files a patent for a Pentax 35-80mm f/4 full frame lens

OoKU · 05-31-2016, 04:45 PM

Ricoh recently filed a patent in a Japan for a 35-80mm f/4 full frame lens that is most likely designed for the Pentax K-1 DSLR camera. Here are the details:

Patent No. 2016-99586
Published on May 30th, 2016
Filing date: October 26th, 2014
Zoom ratio: 2.19
FNO (aperture): 4.1 – 4.1 – 4.1
f (focal length): 36.11 51.17 79.07
L (length): 160.34 166.92 192.65
Ricoh 35-80mm F4?????????????So-net???

pathdoc · 05-31-2016, 04:48 PM

Except for the (for very good reasons) cut price but still excellent D-FA 28-105, these new lens patent rumors seem to be pointing towards a fixed-aperture-zoom philosophy. Interesting.

D1N0 · 05-31-2016, 05:09 PM - **1 Like**

Eighties zoom range.....

robjmitchell · 05-31-2016, 05:32 PM - **1 Like**

DFA 35-80/f4 limited! ☺

Mock · 05-31-2016, 05:33 PM - **3 Likes**

No kidding, why 35? The 28-70 f/4 AL was decent, give that one a refresh with some better QC than the original.

robjmitchell · 05-31-2016, 05:43 PM - **1 Like**

Originally posted by Mock

No kidding, why 35? The 28-70 f/4 AL was decent, give that one a refresh with some better QC than the original.

70mm is a bit short and 28mm is not very wide. 35-80 is a better range if you planning on packing a real wide angle. Plus there is a 100-300/f4 in the works. Add a 20-35/f4 and you have a coherent f4 lens strategy.

Mock · 05-31-2016, 05:49 PM

Originally posted by robjmitchell

70mm is a bit short and 28mm is not very wide. 35-80 is a better range if you planning on packing a real wide angle. Plus there is a 100-300/f4 in the works. Add a 20-35/f4 and you have a coherent f4 lens strategy.

Fair enough, I didn't look at it that way.

**LaurenOE** · 05-31-2016, 06:13 PM - **1 Like**

Very cool. A coherent f/4 strategy would work wonderfully with the K1.
I have the 24-70 f/2.8 and soon to have the 70-200 f/2.8 and now I realize that size is going to be an issue.
f/4 would be perfect, as it would be smaller.
With FF, I will be very happy with f/4.

C_Jones · 05-31-2016, 06:24 PM

I have a Pentax MF 35-80 I used to use with my K-1000. It is a nice range.

mee · 05-31-2016, 06:38 PM - **2 Likes**

A coherent f/4 lens strategy would include a 24-105 f/4 in my book.. I'd even take a 24-80 f/4 if it was sharp on the wide end..

northcoastgreg · 05-31-2016, 06:46 PM

Originally posted by mee

A coherent f/4 lens strategy would include a 24-105 f/4 in my book.. I'd even take a 24-80 f/4 if it was sharp on the wide end.

I agree. However, a 35-80 f4 could be a fairly compact lens — might it not be a DFA limited zoom? Bring on a DFA 20-35 f4 Limited and a DFA 80-150 f4 Limited and you have a trio of compact, high quality zooms that will be unique to Pentax.

Winder · 05-31-2016, 06:46 PM

As long as the image quality is high and the AF is fast, it will be a great little lens for the K-1.

mee · 05-31-2016, 07:04 PM

Originally posted by northcoastgreg

I agree. However, a 35-80 f4 could be a fairly compact lens — might it not be a DFA limited zoom? Bring on a DFA 20-35 f4 Limited and a DFA 80-150 f4 Limited and you have a trio of compact, high quality zooms that will be unique to Pentax.

oh I see.. a 20-40mm limited for FF in a way

I'd rather have less lenses to carry around.. not more haha 24-105 (or 80) and a 70-200 f/4 would be fantastic over here!

VoiceOfReason · 05-31-2016, 07:23 PM - **1 Like**

Imagine a 24-135 f/4 WR....

johnmflores · 05-31-2016, 07:57 PM - **1 Like**

What benefits would the K-1 with a bag of F4 zooms have (if any) over a K-3 II with a bag of F2.8 zooms?

05-31-2016, 04:45 PM	#1
OoKU Pentaxian Join Date: Dec 2015 Posts: 740	Ricoh files a patent for a Pentax 35-80mm f/4 full frame lens Ricoh recently filed a patent in a Japan for a 35-80mm f/4 full frame lens that is most likely designed for the Pentax K-1 DSLR camera. Here are the details: Patent No. 2016-99586 Published on May 30th, 2016 Filing date: October 26th, 2014 Zoom ratio: 2.19 FNO (aperture): 4.1 – 4.1 – 4.1 f (focal length): 36.11 51.17 79.07 L (length): 160.34 166.92 192.65 Ricoh 35-80mm F4?????????????So-net???

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05-31-2016, 04:48 PM	#2
pathdoc Pentaxian Join Date: Mar 2015 Photos: Gallery \| Albums Posts: 6,381	Except for the (for very good reasons) cut price but still excellent D-FA 28-105, these new lens patent rumors seem to be pointing towards a fixed-aperture-zoom philosophy. Interesting.

05-31-2016, 05:09 PM - 1 Like	#3
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	Eighties zoom range.....

05-31-2016, 05:32 PM - 1 Like	#4
robjmitchell Veteran Member Join Date: Oct 2007 Location: Melbourne Aus Posts: 1,776	DFA 35-80/f4 limited! ☺

05-31-2016, 05:33 PM - 3 Likes	#5
Mock Veteran Member Join Date: Feb 2009 Location: Edmonton Photos: Gallery \| Albums Posts: 314	No kidding, why 35? The 28-70 f/4 AL was decent, give that one a refresh with some better QC than the original.

05-31-2016, 05:43 PM - 1 Like	#6
robjmitchell Veteran Member Join Date: Oct 2007 Location: Melbourne Aus Posts: 1,776	Originally posted by Mock No kidding, why 35? The 28-70 f/4 AL was decent, give that one a refresh with some better QC than the original. 70mm is a bit short and 28mm is not very wide. 35-80 is a better range if you planning on packing a real wide angle. Plus there is a 100-300/f4 in the works. Add a 20-35/f4 and you have a coherent f4 lens strategy.

05-31-2016, 05:49 PM	#7
Mock Veteran Member Join Date: Feb 2009 Location: Edmonton Photos: Gallery \| Albums Posts: 314	Originally posted by robjmitchell 70mm is a bit short and 28mm is not very wide. 35-80 is a better range if you planning on packing a real wide angle. Plus there is a 100-300/f4 in the works. Add a 20-35/f4 and you have a coherent f4 lens strategy. Fair enough, I didn't look at it that way.

05-31-2016, 06:13 PM - 1 Like	#8
LaurenOE Site Supporter Join Date: Sep 2009 Location: Back in Florida, but worldwide gigs! Photos: Albums Posts: 3,690	Very cool. A coherent f/4 strategy would work wonderfully with the K1. I have the 24-70 f/2.8 and soon to have the 70-200 f/2.8 and now I realize that size is going to be an issue. f/4 would be perfect, as it would be smaller. With FF, I will be very happy with f/4.

05-31-2016, 06:24 PM	#9
C_Jones Pentaxian Join Date: Sep 2012 Location: NY Photos: Gallery \| Albums Posts: 6,074	I have a Pentax MF 35-80 I used to use with my K-1000. It is a nice range.

05-31-2016, 06:38 PM - 2 Likes	#10
mee Veteran Member Join Date: May 2010 Posts: 7,403	A coherent f/4 lens strategy would include a 24-105 f/4 in my book.. I'd even take a 24-80 f/4 if it was sharp on the wide end..

05-31-2016, 06:46 PM	#11
northcoastgreg Pentaxian Join Date: Feb 2010 Location: Northern Michigan Photos: Gallery \| Albums Posts: 6,174	Originally posted by mee A coherent f/4 lens strategy would include a 24-105 f/4 in my book.. I'd even take a 24-80 f/4 if it was sharp on the wide end. I agree. However, a 35-80 f4 could be a fairly compact lens — might it not be a DFA limited zoom? Bring on a DFA 20-35 f4 Limited and a DFA 80-150 f4 Limited and you have a trio of compact, high quality zooms that will be unique to Pentax.

05-31-2016, 06:46 PM	#12
Winder Veteran Member Join Date: Apr 2010 Location: Tennessee Posts: 6,617	As long as the image quality is high and the AF is fast, it will be a great little lens for the K-1.

05-31-2016, 07:04 PM	#13
mee Veteran Member Join Date: May 2010 Posts: 7,403	Originally posted by northcoastgreg I agree. However, a 35-80 f4 could be a fairly compact lens — might it not be a DFA limited zoom? Bring on a DFA 20-35 f4 Limited and a DFA 80-150 f4 Limited and you have a trio of compact, high quality zooms that will be unique to Pentax. oh I see.. a 20-40mm limited for FF in a way I'd rather have less lenses to carry around.. not more haha 24-105 (or 80) and a 70-200 f/4 would be fantastic over here!

05-31-2016, 07:23 PM - 1 Like	#14
VoiceOfReason Site Supporter Join Date: Jun 2010 Location: Mishawaka IN area Photos: Albums Posts: 6,124	Imagine a 24-135 f/4 WR....

05-31-2016, 07:57 PM - 1 Like	#15
johnmflores Veteran Member Join Date: Apr 2009 Location: Somerville, NJ Photos: Gallery \| Albums Posts: 5,361	What benefits would the K-1 with a bag of F4 zooms have (if any) over a K-3 II with a bag of F2.8 zooms?