Gear to be announced together with K-1

**Tony Belding** · 02-13-2016, 09:30 PM - **2 Likes**

Originally posted by RebelCharlie

Why I stay with Pentax? I read somewhere that a sensor had to reach the 80Mp mark in order to approach the 200ISO grain size.

Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film.

Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen.

ogl · 02-14-2016, 12:25 AM

Originally posted by Belnan

Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR

Could this be an updated version of the smc 28-105 f/3.2-5.6, although they would have to use some type of coating, likely HD.

I don't know such lens. There were 28-105/4-5.6 and 28-105/3.2-4.5.

Azergoth · 02-14-2016, 03:38 AM

Originally posted by Tony Belding

Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film.

Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen.

According to Wikipedia:
A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7]

And the source :-)

Mistral75 · 02-14-2016, 03:55 AM - **1 Like**

Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:

indy · 02-14-2016, 04:22 AM

I'm sure the Tamron lenses are on par optically, but does anyone have knowledge of the build quality? The below link provides an interesting comparison across a few companies.

https://www.lensrentals.com/blog/category/technical-discussion/teardown

**Kerrowdown** · 02-14-2016, 04:23 AM

Originally posted by Tony Belding

We just need a proper focusing screen.

Perhaps that's already there too.

Zygonyx · 02-14-2016, 04:27 AM

Please STOP make us dreaming !!!

JPT · 02-14-2016, 05:07 AM

Originally posted by Mistral75

Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:

That looks very similar in design to other other recent mid-range Pentax Zooms. It actually looks a bit shorter than the DA16-85 and a bit longer than the DA 18-135 - (I counted the stipples on the waffle grip, 22:24). It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo.

raider · 02-14-2016, 05:17 AM

Hmm...I am actually hoping for a 12-30mm lens

Mistral75 · 02-14-2016, 05:47 AM

Originally posted by JPT

(...) It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo.

Most, if not all recent Pentax-branded lenses have a green ring, including HD DA 18-50mm f/4-5.6, HD D FA 150-450mm, HD D FA 24-70 and smc D FA645 35mm f/3.5 (a first for a 645 lens, if I'm not mistaken).

thibs · 02-14-2016, 06:01 AM - **1 Like**

Originally posted by raider

Hmm...I am actually hoping for a 12-30mm lens

15-30 is coming.

---------- Post added 14-02-16 at 14:01 ----------

Originally posted by Azergoth

According to Wikipedia:
A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7]

And the source :-)

This may help:
https://www.onlandscape.co.uk/2014/12/36-megapixels-vs-6x7-velvia/

Don't confuse film is a capture medium and print.

bibz · 02-14-2016, 06:27 AM

That lens is quite the perfect predicted kit I hoped for.

ogl · 02-14-2016, 07:16 AM

Originally posted by Mistral75

Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:

7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens.

Mistral75 · 02-14-2016, 07:30 AM

Originally posted by ogl

7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens.

From a Russian forum?

zapp · 02-14-2016, 09:42 AM

Looks like Tamron should know a lot about Pentax gear these days - we had a couple posts starting with information from the Tamrom rep saying something.... well, he probably does know a lot.
Rebadging Tamron is better than no extreme zooms or buying 3rd party zooms that are not fully supported... Let's see what kind of fixed focal length lenses we can expect after a roadmap update. The Tamron 1.8/35 would be a nice addition as well as a rumored 1.4/85 stabilized by the camera. What I still wonder the most about is the 2.8/70-200... for a Tamron design it is too expensive and too heavy.

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02-13-2016, 09:30 PM - 2 Likes	#46
Tony Belding Site Supporter Join Date: Mar 2013 Location: Hamilton, Texas Photos: Gallery \| Albums Posts: 787	Originally posted by RebelCharlie Why I stay with Pentax? I read somewhere that a sensor had to reach the 80Mp mark in order to approach the 200ISO grain size. Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film. Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen.

02-14-2016, 12:25 AM	#47
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by Belnan Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR Could this be an updated version of the smc 28-105 f/3.2-5.6, although they would have to use some type of coating, likely HD. I don't know such lens. There were 28-105/4-5.6 and 28-105/3.2-4.5.

02-14-2016, 03:38 AM	#48
Azergoth Senior Member Join Date: Feb 2013 Posts: 189	Originally posted by Tony Belding Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film. Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen. According to Wikipedia: A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7] And the source :-)

02-14-2016, 03:55 AM - 1 Like	#49
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527 Original Poster	Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:

02-14-2016, 04:22 AM	#50
indy Senior Member Join Date: May 2010 Location: Indiana Photos: Gallery Posts: 274	I'm sure the Tamron lenses are on par optically, but does anyone have knowledge of the build quality? The below link provides an interesting comparison across a few companies. https://www.lensrentals.com/blog/category/technical-discussion/teardown

02-14-2016, 04:23 AM	#51
Kerrowdown PEG Moderator Join Date: Aug 2008 Location: Highlands of Scotland... "Hold Infinity in the palm of your hand" - William Blake Photos: Gallery Posts: 57,833	Originally posted by Tony Belding We just need a proper focusing screen. Perhaps that's already there too.

02-14-2016, 04:27 AM	#52
Zygonyx Pentaxian Join Date: Jun 2011 Location: Ile de France Posts: 4,033	Please STOP make us dreaming !!!

02-14-2016, 05:07 AM	#53
JPT Pentaxian Join Date: Jan 2012 Location: Tokyo Photos: Gallery Posts: 2,821	Originally posted by Mistral75 Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb: That looks very similar in design to other other recent mid-range Pentax Zooms. It actually looks a bit shorter than the DA16-85 and a bit longer than the DA 18-135 - (I counted the stipples on the waffle grip, 22:24). It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo.

02-14-2016, 05:17 AM	#54
raider Veteran Member Join Date: Jul 2007 Location: Perth, Australia Photos: Gallery Posts: 1,989	Hmm...I am actually hoping for a 12-30mm lens

02-14-2016, 05:47 AM	#55
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527 Original Poster	Originally posted by JPT (...) It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo. Most, if not all recent Pentax-branded lenses have a green ring, including HD DA 18-50mm f/4-5.6, HD D FA 150-450mm, HD D FA 24-70 and smc D FA645 35mm f/3.5 (a first for a 645 lens, if I'm not mistaken).

02-14-2016, 06:01 AM - 1 Like	#56
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by raider Hmm...I am actually hoping for a 12-30mm lens 15-30 is coming. ---------- Post added 14-02-16 at 14:01 ---------- Originally posted by Azergoth According to Wikipedia: A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7] And the source :-) This may help: https://www.onlandscape.co.uk/2014/12/36-megapixels-vs-6x7-velvia/ Don't confuse film is a capture medium and print.

02-14-2016, 06:27 AM	#57
bibz Senior Member Join Date: Nov 2009 Location: Newcastle, AU! Posts: 276	That lens is quite the perfect predicted kit I hoped for.

02-14-2016, 07:16 AM	#58
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by Mistral75 Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb: 7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens.

02-14-2016, 07:30 AM	#59
Mistral75 Pentaxian Join Date: Feb 2009 Location: Paris, France Posts: 7,527 Original Poster	Originally posted by ogl 7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens. From a Russian forum?

02-14-2016, 09:42 AM	#60
zapp Pentaxian Join Date: Jul 2011 Posts: 2,387	Looks like Tamron should know a lot about Pentax gear these days - we had a couple posts starting with information from the Tamrom rep saying something.... well, he probably does know a lot. Rebadging Tamron is better than no extreme zooms or buying 3rd party zooms that are not fully supported... Let's see what kind of fixed focal length lenses we can expect after a roadmap update. The Tamron 1.8/35 would be a nice addition as well as a rumored 1.4/85 stabilized by the camera. What I still wonder the most about is the 2.8/70-200... for a Tamron design it is too expensive and too heavy.