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Ayoh · 03-30-2015, 02:38 PM

Originally posted by goubejp

You may see that the glass cut is also painted with dark paint, so you can't guess the material just by the aspect of the material.
A DC motor would be visible and there would be a gear mechanism visible.
Also see that the internal ring seems directly coupled with the focusing ring. A spacer ring would not touch the focusing ring

The glass is not painted, it just has a Matt appearance due the roughened cut surface. Neither is anything else painted. Look at other sectioned lenses to see how they look. A dc motor would only be visible if it was either directly in the cutting plane or not far away. It could be in the section that was removed, or hidden behind some components. Again look at other sdm/DC lens cutaways by pentax, often you can't see the motor either.

I know people want to believe that there is a ring motor in these lenses, but look at the facts which show no evidence of there being one. Asahi mans speculation does not make it a fact, especially since there's no evidence a ring motor is used. Nor does pentax claim they have developed or used unique induction ring motor.

asahi man · 03-30-2015, 02:59 PM

Wait a couple of days,than i have the facts about the motordrive.
Best regards

Ayoh · 03-30-2015, 03:43 PM

Great, thanks! if you can show any photos that would be a bonus

Originally posted by asahi man

Wait a couple of days,than i have the facts about the motordrive.
Best regards

dane.dawg · 03-30-2015, 04:21 PM

Asahi man is rarely wrong about pentax products.

thibs · 03-30-2015, 10:06 PM

Originally posted by dane.dawg

Asahi man is rarely wrong about pentax products.

Indeed but still want to know

timautin · 03-31-2015, 02:33 AM

Thanks for these first pictures kenspro ! The light was really bad though, and it's hard to say something on the sharpness. As said before, it would be great if you could shoot some birds / mammals in a sunny day

!

I saw on the 70-200 topic that you also have the DA* 300, can you tell how does the 150-450 performs compared to it (IQ-wise) ?

kenspo · 03-31-2015, 02:41 AM

Originally posted by timautin

Thanks for these first pictures kenspro ! The light was really bad though, and it's hard to say something on the sharpness. As said before, it would be great if you could shoot some birds / mammals in a sunny day

!

I saw on the 70-200 topic that you also have the DA* 300, can you tell how does the 150-450 performs compared to it (IQ-wise) ?

Hehe..When i have the time, i will

i have 4 days of Black Metal festival to work on in the days to come! Ricoh gave me these lenses to test for my own sake, but i want to share what i find out.

The 150-450 seems faster. Will have to compare sharpness between them later.

dafbp · 03-31-2015, 05:07 AM

Any chance to test the focusing with fast moving subjects coming at you (like planes)?
And far away subjects (like barely filling the focus points)?

These would test not only the speed, but also accuracy and optical qualities.

kenspo · 03-31-2015, 05:19 AM

Originally posted by dafbp

Any chance to test the focusing with fast moving subjects coming at you (like planes)?
And far away subjects (like barely filling the focus points)?

These would test not only the speed, but also accuracy and optical qualities.

If i get the time, i will

timautin · 03-31-2015, 07:03 AM

Quote:

Hehe..When i have the time, i will

Quote:

If i get the time, i will

Thanks

**nitehntr** · 03-31-2015, 07:26 AM

Originally posted by ak_kiwi

Ricoh is between a rock and hard place with SDM and I'm sure you can work out why -
Can't "officially" say there was ever problem.
Can't "officially" say they have fixed it. ( Logic would say they have of course)
The fix - use a focus drive system in new lenses that is proven and has a more positive reaction in the market place.

That said - I personally would have no problems buying a new SDM lense today if it fitted my needs

i have had the SDM replaced twice in the 16-50 and the 60-250 since the original purchases and the last ones took and both were done under Ricoh. so whatever was the problem it seems to have been solved.

dafbp · 03-31-2015, 10:53 PM

Originally posted by kenspo

If i get the time, i will

Thanks.
For everything.

**Stavri** · 03-31-2015, 11:07 PM

The Pentax brand is getting expensive.........

redpit · 03-31-2015, 11:15 PM

Originally posted by Stavri

The Pentax brand is getting expensive.........

That is the ONLY sure thing about the "new" Pentax up to now! I can't wait to see if this characteristic is justified by the quality it provides...

Kunzite · 03-31-2015, 11:39 PM

Originally posted by Stavri

The Pentax brand is getting expensive.........

The Pentax brand is getting better.

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03-30-2015, 02:38 PM	#361
Ayoh Veteran Member Join Date: Jun 2009 Location: Melbourne Posts: 341	Originally posted by goubejp You may see that the glass cut is also painted with dark paint, so you can't guess the material just by the aspect of the material. A DC motor would be visible and there would be a gear mechanism visible. Also see that the internal ring seems directly coupled with the focusing ring. A spacer ring would not touch the focusing ring The glass is not painted, it just has a Matt appearance due the roughened cut surface. Neither is anything else painted. Look at other sectioned lenses to see how they look. A dc motor would only be visible if it was either directly in the cutting plane or not far away. It could be in the section that was removed, or hidden behind some components. Again look at other sdm/DC lens cutaways by pentax, often you can't see the motor either. I know people want to believe that there is a ring motor in these lenses, but look at the facts which show no evidence of there being one. Asahi mans speculation does not make it a fact, especially since there's no evidence a ring motor is used. Nor does pentax claim they have developed or used unique induction ring motor.

03-30-2015, 02:59 PM	#362
asahi man Veteran Member Join Date: Oct 2013 Photos: Albums Posts: 323	Wait a couple of days,than i have the facts about the motordrive. Best regards

03-30-2015, 03:43 PM	#363
Ayoh Veteran Member Join Date: Jun 2009 Location: Melbourne Posts: 341	Great, thanks! if you can show any photos that would be a bonus Originally posted by asahi man Wait a couple of days,than i have the facts about the motordrive. Best regards

03-30-2015, 04:21 PM	#364
dane.dawg Veteran Member Join Date: Aug 2011 Location: B.C. Photos: Gallery Posts: 1,436	Asahi man is rarely wrong about pentax products.

03-30-2015, 10:06 PM	#365
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,000	Originally posted by dane.dawg Asahi man is rarely wrong about pentax products. Indeed but still want to know

03-31-2015, 02:33 AM	#366
timautin Pentaxian Join Date: Feb 2015 Posts: 345	Thanks for these first pictures kenspro ! The light was really bad though, and it's hard to say something on the sharpness. As said before, it would be great if you could shoot some birds / mammals in a sunny day ! I saw on the 70-200 topic that you also have the DA* 300, can you tell how does the 150-450 performs compared to it (IQ-wise) ?

03-31-2015, 02:41 AM	#367
kenspo Veteran Member Join Date: Mar 2014 Location: Oslo Posts: 2,207	Originally posted by timautin Thanks for these first pictures kenspro ! The light was really bad though, and it's hard to say something on the sharpness. As said before, it would be great if you could shoot some birds / mammals in a sunny day ! I saw on the 70-200 topic that you also have the DA* 300, can you tell how does the 150-450 performs compared to it (IQ-wise) ? Hehe..When i have the time, i will i have 4 days of Black Metal festival to work on in the days to come! Ricoh gave me these lenses to test for my own sake, but i want to share what i find out. The 150-450 seems faster. Will have to compare sharpness between them later.

03-31-2015, 05:07 AM	#368
dafbp Senior Member Join Date: Jan 2015 Posts: 233	Any chance to test the focusing with fast moving subjects coming at you (like planes)? And far away subjects (like barely filling the focus points)? These would test not only the speed, but also accuracy and optical qualities.

03-31-2015, 05:19 AM	#369
kenspo Veteran Member Join Date: Mar 2014 Location: Oslo Posts: 2,207	Originally posted by dafbp Any chance to test the focusing with fast moving subjects coming at you (like planes)? And far away subjects (like barely filling the focus points)? These would test not only the speed, but also accuracy and optical qualities. If i get the time, i will

03-31-2015, 07:03 AM	#370
timautin Pentaxian Join Date: Feb 2015 Posts: 345	Quote: Hehe..When i have the time, i will Quote: If i get the time, i will Thanks

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03-31-2015, 07:26 AM	#371
nitehntr Site Supporter Join Date: Jun 2009 Location: Rivesville West Virginia Photos: Gallery Posts: 233	Originally posted by ak_kiwi Ricoh is between a rock and hard place with SDM and I'm sure you can work out why - Can't "officially" say there was ever problem. Can't "officially" say they have fixed it. ( Logic would say they have of course) The fix - use a focus drive system in new lenses that is proven and has a more positive reaction in the market place. That said - I personally would have no problems buying a new SDM lense today if it fitted my needs i have had the SDM replaced twice in the 16-50 and the 60-250 since the original purchases and the last ones took and both were done under Ricoh. so whatever was the problem it seems to have been solved.

03-31-2015, 10:53 PM	#372
dafbp Senior Member Join Date: Jan 2015 Posts: 233	Originally posted by kenspo If i get the time, i will Thanks. For everything.

03-31-2015, 11:07 PM	#373
Stavri Site Supporter Join Date: Aug 2014 Location: at a Bean & Leaf Photos: Albums Posts: 1,832	The Pentax brand is getting expensive.........

03-31-2015, 11:15 PM	#374
redpit Pentaxian Join Date: Aug 2013 Location: Greece Photos: Gallery \| Albums Posts: 1,850	Originally posted by Stavri The Pentax brand is getting expensive......... That is the ONLY sure thing about the "new" Pentax up to now! I can't wait to see if this characteristic is justified by the quality it provides...

03-31-2015, 11:39 PM	#375
Kunzite Pentaxian Join Date: Apr 2007 Location: Romania Posts: 15,131	Originally posted by Stavri The Pentax brand is getting expensive......... The Pentax brand is getting better.

HD PENTAX-D FA 150-450mm F4.5-5.6ED DC AW

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