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**Rondec** · 03-22-2018, 01:30 PM

Originally posted by gaweidert

Not unusual at all. One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts. An awful lot of 300mm lenses out there that are have an actual focal length closer the 280mm than 300mm.

Been this way since I got my first SLR in 1970.

The bigger thing is that for most zooms, the stated focal length is only true at infinity focus and so for a lens like the DA 55-300, the 300mm focal length is quite a bit shorter if you are focusing on something closer than that.

But you are right that Pentax is a bit unusual in their naming of the FA limiteds. Most camera companies would take the 31/43/77 and round them up or down to make round sounding numbers.

deus ursus · 03-22-2018, 02:52 PM

Originally posted by gaweidert

Not unusual at all. One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts. An awful lot of 300mm lenses out there that are have an actual focal length closer the 280mm than 300mm.

Been this way since I got my first SLR in 1970.

That's perhaps why Leica has a 280/2.8 and not a 300/2.8?

**BigMackCam** · 03-22-2018, 03:08 PM - **1 Like**

Originally posted by mirelay

I hope it has only one extending cylinder

I agree. I'm really not a fan of the numerous "dual cam" two-extending-cylinder lens designs. There's a little to much mechanics going on there for barrel stability and long-term reliability - though I'll admit, that's a personal opinion

mee · 03-22-2018, 09:30 PM - **1 Like**

Originally posted by Mistral75

Source: 70-200/4 added to roadmap.: Pentax SLR Talk Forum: Digital Photography Review

It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today. Seems to ebb and flow..

But I find it exciting that Ricoh might actually update the 16-50 with new optics. If they can improve resolution at f/2.8 and reduce CA it will be a really nice lens.. esp with the proven reliable DC motor.

And then an updated 50-135mm.. so nice.

I don't understand why Ricoh didn't do this several years ago.. but I'm glad they are doing something now at least.

Jonathan Mac · 03-23-2018, 01:16 AM - **1 Like**

Originally posted by mee

It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today. Seems to ebb and flow..

But I find it exciting that Ricoh might actually update the 16-50 with new optics. If they can improve resolution at f/2.8 and reduce CA it will be a really nice lens.. esp with the proven reliable DC motor.

And then an updated 50-135mm.. so nice.

I don't understand why Ricoh didn't do this several years ago.. but I'm glad they are doing something now at least.

It's been clear for a very long time that re-vamps of the DA* lenses are necessary. I think if they'd been done years ago it would have done a lot of good for the Pentax brand - it's very harmful to have current models out which are known to have design/manufacturing faults.

Ketsuppi11 · 03-23-2018, 01:31 AM

Originally posted by Jonathan Mac

It's been clear for a very long time that re-vamps of the DA* lenses are necessary. I think if they'd been done years ago it would have done a lot of good for the Pentax brand - it's very harmful to have current models out which are known to have design/manufacturing faults.

People started talking about DA* 16-50mm mkII around 2010 and I started to wait for one around 2011. Waited for 5 years until I bought 16-85mm. So not in hurry at the moment but I almost left Pentax because of bad copy of 16-50mm

Kunzite · 03-23-2018, 01:40 AM

Originally posted by mee

It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today.

Since this patent appears to reinforce what he said about a new DA* 16-50, what's the problem?

wed7 · 03-23-2018, 03:19 AM

I wish Pentax would be able to release those in time.

**gaweidert** · 03-23-2018, 04:38 AM - **1 Like**

Originally posted by deus ursus

That's perhaps why Leica has a 280/2.8 and not a 300/2.8?

The Germans tend to be very precise about such things.

mee · 03-23-2018, 05:31 AM

Originally posted by Kunzite

Since this patent appears to reinforce what he said about a new DA* 16-50, what's the problem?

Not what I'm referencing.. and I said a lot of (nice) things in that post, yet you focus on the one thing you find bad? no no.. not going there with you.

Kunzite · 03-23-2018, 06:43 AM

No need to get defensive, that wasn't an attack.
I'm not sure what that part of your statement is about... so I asked.

wkraus · 03-23-2018, 12:28 PM

Originally posted by wed7

I wish Pentax ~~would~~ will be able to release those in time.

Fixed that for you!

wed7 · 03-24-2018, 06:45 AM

Originally posted by wkraus

Fixed that for you!

Yay! Thank you.

Glen · 03-24-2018, 03:56 PM

If Pentax is updating the DA*16-50 I would think that they will also update the DA*50-135. The two sort of go hand in hand. Now that would boost sales in a big way.

lytrytyr · 03-25-2018, 04:59 PM

Originally posted by gaweidert

One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts.

I'm shocked, shocked!

That is not cricket!

(Except in Australia, it seems.)

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03-22-2018, 01:30 PM	#31
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,666	Originally posted by gaweidert Not unusual at all. One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts. An awful lot of 300mm lenses out there that are have an actual focal length closer the 280mm than 300mm. Been this way since I got my first SLR in 1970. The bigger thing is that for most zooms, the stated focal length is only true at infinity focus and so for a lens like the DA 55-300, the 300mm focal length is quite a bit shorter if you are focusing on something closer than that. But you are right that Pentax is a bit unusual in their naming of the FA limiteds. Most camera companies would take the 31/43/77 and round them up or down to make round sounding numbers.

03-22-2018, 02:52 PM	#32
deus ursus Pentaxian Join Date: Nov 2012 Location: Stårheim, Norway Posts: 659	Originally posted by gaweidert Not unusual at all. One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts. An awful lot of 300mm lenses out there that are have an actual focal length closer the 280mm than 300mm. Been this way since I got my first SLR in 1970. That's perhaps why Leica has a 280/2.8 and not a 300/2.8?

03-22-2018, 03:08 PM - 1 Like	#33
BigMackCam Digitiser of Film Join Date: Mar 2010 Location: North East of England Posts: 20,705	Originally posted by mirelay I hope it has only one extending cylinder I agree. I'm really not a fan of the numerous "dual cam" two-extending-cylinder lens designs. There's a little to much mechanics going on there for barrel stability and long-term reliability - though I'll admit, that's a personal opinion

03-22-2018, 09:30 PM - 1 Like	#34
mee Veteran Member Join Date: May 2010 Posts: 7,403	Originally posted by Mistral75 Source: 70-200/4 added to roadmap.: Pentax SLR Talk Forum: Digital Photography Review It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today. Seems to ebb and flow.. But I find it exciting that Ricoh might actually update the 16-50 with new optics. If they can improve resolution at f/2.8 and reduce CA it will be a really nice lens.. esp with the proven reliable DC motor. And then an updated 50-135mm.. so nice. I don't understand why Ricoh didn't do this several years ago.. but I'm glad they are doing something now at least.

03-23-2018, 01:16 AM - 1 Like	#35
Jonathan Mac Pentaxian Join Date: Apr 2009 Location: Madrid, Spain Posts: 10,911	Originally posted by mee It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today. Seems to ebb and flow.. But I find it exciting that Ricoh might actually update the 16-50 with new optics. If they can improve resolution at f/2.8 and reduce CA it will be a really nice lens.. esp with the proven reliable DC motor. And then an updated 50-135mm.. so nice. I don't understand why Ricoh didn't do this several years ago.. but I'm glad they are doing something now at least. It's been clear for a very long time that re-vamps of the DA* lenses are necessary. I think if they'd been done years ago it would have done a lot of good for the Pentax brand - it's very harmful to have current models out which are known to have design/manufacturing faults.

03-23-2018, 01:31 AM	#36
Ketsuppi11 Senior Member Join Date: Nov 2008 Photos: Albums Posts: 217	Originally posted by Jonathan Mac It's been clear for a very long time that re-vamps of the DA* lenses are necessary. I think if they'd been done years ago it would have done a lot of good for the Pentax brand - it's very harmful to have current models out which are known to have design/manufacturing faults. People started talking about DA* 16-50mm mkII around 2010 and I started to wait for one around 2011. Waited for 5 years until I bought 16-85mm. So not in hurry at the moment but I almost left Pentax because of bad copy of 16-50mm

03-23-2018, 01:40 AM	#37
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	Originally posted by mee It is interesting how asahi man was largely dismissed and dumped on last month here but accepted as accurate today. Since this patent appears to reinforce what he said about a new DA* 16-50, what's the problem?

03-23-2018, 03:19 AM	#38
wed7 Pentaxian Join Date: Mar 2010 Location: Manila, Philippines Posts: 1,421	I wish Pentax would be able to release those in time.

03-23-2018, 04:38 AM - 1 Like	#39
gaweidert Loyal Site Supporter Join Date: Mar 2012 Location: Rochester, NY Photos: Gallery Posts: 5,327	Originally posted by deus ursus That's perhaps why Leica has a 280/2.8 and not a 300/2.8? The Germans tend to be very precise about such things.

03-23-2018, 05:31 AM	#40
mee Veteran Member Join Date: May 2010 Posts: 7,403	Originally posted by Kunzite Since this patent appears to reinforce what he said about a new DA* 16-50, what's the problem? Not what I'm referencing.. and I said a lot of (nice) things in that post, yet you focus on the one thing you find bad? no no.. not going there with you.

03-23-2018, 06:43 AM	#41
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,132	No need to get defensive, that wasn't an attack. I'm not sure what that part of your statement is about... so I asked.

03-23-2018, 12:28 PM	#42
wkraus Pentaxian Join Date: Jan 2013 Location: Near Vienna, Austria Photos: Gallery Posts: 2,067	Originally posted by wed7 I wish Pentax ~~would~~ will be able to release those in time. Fixed that for you!

03-24-2018, 06:45 AM	#43
wed7 Pentaxian Join Date: Mar 2010 Location: Manila, Philippines Posts: 1,421	Originally posted by wkraus Fixed that for you! Yay! Thank you.

03-24-2018, 03:56 PM	#44
Glen Veteran Member Join Date: Oct 2009 Location: Alberta, Canada Photos: Gallery \| Albums Posts: 329	If Pentax is updating the DA16-50 I would think that they will also update the DA50-135. The two sort of go hand in hand. Now that would boost sales in a big way.

03-25-2018, 04:59 PM	#45
lytrytyr Pentaxian Join Date: Nov 2011 Photos: Gallery \| Albums Posts: 4,310	Originally posted by gaweidert One has to look at stated camera lens focal lengths as being in the ballpark and not as actual facts. I'm shocked, shocked! That is not cricket! (Except in Australia, it seems.)

New DA*16-50/2.8 patent filed in Japan

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