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pjalves · 09-16-2014, 03:31 AM - **3 Likes**

A little montage I've made:

I wish the new lens could be smaller, or faster...

mocker · 09-16-2014, 05:18 AM

...or may be it is sharper ?!

fsge · 09-16-2014, 05:45 AM

Does not look smaller!
Thanks for comparison

cxdoo · 09-16-2014, 05:54 AM

It's a good sign it's bigger, that would imply better IQ. Having "just" comparable IQ would make it kind of redundant.

**Aristophanes** · 09-16-2014, 06:06 AM

Wider FOV means a larger lens, especially in a zoom.

pinholecam · 09-16-2014, 06:28 AM

Were the 2 shots even on the same scale to make the comparison reasonable?

Nonetheless, 16mm is a nice FL to have for a walkabout zoom , better than 18mm imo.

JinDesu · 09-16-2014, 06:31 AM

Originally posted by pinholecam

Were the 2 shots even on the same scale to make the comparison reasonable?

Nonetheless, 16mm is a nice FL to have for a walkabout zoom , better than 18mm imo.

Likely the OP scaled it based on the lens mount, which is the only consistent thing between lenses.

pjalves · 09-16-2014, 06:40 AM

One of the original images was scaled to match the other. Reference was the mount.
It even was easy, because both photos look like they were taken from the same angle and with the same FOV. They match perfectly.
Here they are side-by-side:

Joshua A · 09-16-2014, 07:07 AM

One thing I already love about this lens is what looks like an incredibly smooth zoom ring with a very generous amount of travel. I'm so over my 16-50mm in this regard, the zoom ring has virtually no travel and isn't smooth in the least, something that cannot be said for the other Pentax standard zooms I (and my father) own (18-55mm WR, A 35-105mm, F35-70mm)!

Ishpuini · 09-16-2014, 07:08 AM

I would indeed expect the lens to be larger to accommodate 16mm vs 18mm. I wonder how they will compare at the tele end, i.e. 85mm vs 135mm. Of course that question cannot be answered yet...

Wim

cfraz · 09-16-2014, 07:46 AM

Originally posted by Ishpuini

I would indeed expect the lens to be larger to accommodate 16mm vs 18mm. I wonder how they will compare at the tele end, i.e. 85mm vs 135mm. Of course that question cannot be answered yet...

Wim

I expect the new lens will be noticeably poorer at 86-135

For me a more interesting question is how will they compare both at 85 mm.

**jrpower10** · 09-16-2014, 08:00 AM - **2 Likes**

Worse from 86-135, but infinitely better 16-18

Ishpuini · 09-16-2014, 08:09 AM

Originally posted by cfraz

I expect the new lens will be noticeably poorer at 86-135

For me a more interesting question is how will they compare both at 85 mm.

LOL

I meant in terms of size, not IQ

Wim

ruggiex · 09-16-2014, 08:42 AM

Seems like maybe the IQ could be an upgrade from 18-135... will be tempted to replace it...

ogl · 09-16-2014, 09:25 AM

Originally posted by pjalves

One of the original images was scaled to match the other. Reference was the mount.
It even was easy, because both photos look like they were taken from the same angle and with the same FOV. They match perfectly.
Here they are side-by-side:

why 16-85 bigger ?

09-16-2014, 03:31 AM - 3 Likes	#1
pjalves Junior Member Join Date: Dec 2013 Location: Viana do Castelo Photos: Gallery Posts: 44	16-85 vs 18-135 size comparision [image] A little montage I've made: I wish the new lens could be smaller, or faster...

09-16-2014, 06:40 AM	#8
pjalves Junior Member Join Date: Dec 2013 Location: Viana do Castelo Photos: Gallery Posts: 44 Original Poster	Exactly. One of the original images was scaled to match the other. Reference was the mount. It even was easy, because both photos look like they were taken from the same angle and with the same FOV. They match perfectly. Here they are side-by-side:

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09-16-2014, 05:18 AM	#2
mocker Junior Member Join Date: Jul 2013 Posts: 25	...or may be it is sharper ?!

09-16-2014, 05:45 AM	#3
fsge Veteran Member Join Date: Jun 2010 Location: Genf Posts: 1,138	Does not look smaller! Thanks for comparison

09-16-2014, 05:54 AM	#4
cxdoo Pentaxian Join Date: Apr 2014 Location: Limassol, Cyprus Posts: 1,149	It's a good sign it's bigger, that would imply better IQ. Having "just" comparable IQ would make it kind of redundant.

09-16-2014, 06:06 AM	#5
Aristophanes Site Supporter Join Date: Jul 2008 Location: Rankin Inlet, Nunavut Photos: Albums Posts: 3,948	Wider FOV means a larger lens, especially in a zoom.

09-16-2014, 06:28 AM	#6
pinholecam Pentaxian Join Date: Oct 2009 Location: North Photos: Gallery Posts: 4,697	Were the 2 shots even on the same scale to make the comparison reasonable? Nonetheless, 16mm is a nice FL to have for a walkabout zoom , better than 18mm imo.

09-16-2014, 06:31 AM	#7
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	Originally posted by pinholecam Were the 2 shots even on the same scale to make the comparison reasonable? Nonetheless, 16mm is a nice FL to have for a walkabout zoom , better than 18mm imo. Likely the OP scaled it based on the lens mount, which is the only consistent thing between lenses.

09-16-2014, 07:07 AM	#9
Joshua A Senior Member Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 273	One thing I already love about this lens is what looks like an incredibly smooth zoom ring with a very generous amount of travel. I'm so over my 16-50mm in this regard, the zoom ring has virtually no travel and isn't smooth in the least, something that cannot be said for the other Pentax standard zooms I (and my father) own (18-55mm WR, A 35-105mm, F35-70mm)!

09-16-2014, 07:08 AM	#10
Ishpuini Veteran Member Join Date: Sep 2006 Location: Antwerp, Belgium Photos: Gallery Posts: 1,727	I would indeed expect the lens to be larger to accommodate 16mm vs 18mm. I wonder how they will compare at the tele end, i.e. 85mm vs 135mm. Of course that question cannot be answered yet... Wim

09-16-2014, 07:46 AM	#11
cfraz Veteran Member Join Date: Jan 2009 Location: Oregon, USA Posts: 521	Originally posted by Ishpuini I would indeed expect the lens to be larger to accommodate 16mm vs 18mm. I wonder how they will compare at the tele end, i.e. 85mm vs 135mm. Of course that question cannot be answered yet... Wim I expect the new lens will be noticeably poorer at 86-135 For me a more interesting question is how will they compare both at 85 mm.

09-16-2014, 08:00 AM - 2 Likes	#12
jrpower10 Site Supporter Join Date: Sep 2011 Location: Richland, Washington, USA Posts: 935	Worse from 86-135, but infinitely better 16-18

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09-16-2014, 08:09 AM	#13
Ishpuini Veteran Member Join Date: Sep 2006 Location: Antwerp, Belgium Photos: Gallery Posts: 1,727	Originally posted by cfraz I expect the new lens will be noticeably poorer at 86-135 For me a more interesting question is how will they compare both at 85 mm. LOL I meant in terms of size, not IQ Wim

09-16-2014, 08:42 AM	#14
ruggiex Veteran Member Join Date: Feb 2010 Location: East Bay Area Photos: Gallery Posts: 811	Seems like maybe the IQ could be an upgrade from 18-135... will be tempted to replace it...

09-16-2014, 09:25 AM	#15
ogl Banned Join Date: Dec 2007 Location: Sankt Peterburg Photos: Gallery \| Albums Posts: 8,382	Originally posted by pjalves One of the original images was scaled to match the other. Reference was the mount. It even was easy, because both photos look like they were taken from the same angle and with the same FOV. They match perfectly. Here they are side-by-side: why 16-85 bigger ?

16-85 vs 18-135 size comparision [image]

Win a Pentax Limited lens and more - enter in our 2023 end of year giveaway!