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View Poll Results: Select the option that best describes your agreement with the statement
I have a dual SDM and screw drive lens and I want the ability to choose the focus mechanism. 20258.38%
I am planning on buying a SDM/screw drive lens and I want the ability to choose the focus mechanism. 6919.94%
I will not buy a SDM lens until I have the ability to choose the focus mechanism. 7521.68%
Voters: 346. You may not vote on this poll

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11-26-2009, 02:03 PM   #166
Ash
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Rondec, I've reiterated this many times and would like to see action on the part of concerned users.
Express the concerns to Pentax Corp - mount pressure on them to get SDM right.
Individually, or Collectively.
If we care enough for Pentax gear, we should care enough to voice these issues continually until we see results.

11-29-2009, 05:59 AM   #167
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QuoteOriginally posted by Ash Quote
I've reiterated this many times and would like to see action on the part of concerned users.
Sometimes people have to get together before they act so that they can see that they aren't alone in their thinking and or simply to know that they aren't alone. Having this poll is partly about that. I think the term is critical mass.

Thank you
Russell
11-29-2009, 04:34 PM   #168
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Perhaps so, but even if one person is passionate enough about a significant change for the better, regardless of the perceived outcome, he/she should act.

I've done so myself without needing people to back me up. But I take your point - would it make any difference if a petition were lodged? Perhaps.
11-29-2009, 06:55 PM   #169
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QuoteOriginally posted by Ash Quote
Perhaps so, but even if one person is passionate enough about a significant change for the better, regardless of the perceived outcome, he/she should act.

I've done so myself without needing people to back me up. But I take your point - would it make any difference if a petition were lodged? Perhaps.
I started another thread asking opinions about the "act" as I didn't think it would do any good to post it here. I was hoping someone with more experience with consumer activism would post an idea or two to this thread and hopefully other people that are just interested parties would respond with what they thought the best way to heard would be. I don't personally think a single voice of passion is going to change anything, but maybe a multitude of users can change things.

Here is the post.
QuoteQuote:
A number of people are suggesting writing "Pentax" to express concern over the SDM issue. "Pentax" seems to be run by country or region. This makes it seem that a user in AU writing to Pentax AU, a user in the US writing to Pentax US, a user in CA writing to Pentax CA, and another in the EU writing to Pentax EU, will be less effective than those same four users writing to a common "Pentax". Maybe Pentax headquarters?

So the question is, do Japanese consumers petition Japanese business? I know this is an accepted practice in the US, but have no idea in other cultures.
Thank you
Russell


Last edited by Russell-Evans; 11-29-2009 at 07:01 PM.
12-02-2009, 10:25 AM   #170
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I searched through DPR to find the SDM posts, I want keep this updated, so I'll post it here.

A Schamber
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33120751
AlbertSiegel
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33546220
AndresEE
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33083361
Anilla
http://forums.dpreview.com/forums/read.asp?forum=1036&message=27935843
CarlosRG
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33213757
Cideway
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33039468
Dale108
http://forums.dpreview.com/forums/read.asp?forum=1036&message=30157976
DarylK
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33545316
Dave istDS
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31008147
dick eduard
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33038889
donla
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33507525
Eric C in OK
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31062799
faither
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33101357
flash1100
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33710456
FranckB
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33197800
gerard boulanger
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33097101
hanssont
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33039363
HonourableTyr
http://forums.dpreview.com/forums/read.asp?forum=1036&message=27960508
HotJapaneseCamera
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33041357
inferno10
http://forums.dpreview.com/forums/read.asp?forum=1036&message=32669604
janneman02
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31056881
Jim King
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33662578
JoeLim
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33057921
John Shakespeare
http://forums.dpreview.com/forums/read.asp?forum=1036&message=32982613
jonny1976
http://forums.dpreview.com/forums/read.asp?forum=1036&message=29751478
Joseph Tainter
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33042333
Larry Paris
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31007030
Les Lammers
http://forums.dpreview.com/forums/read.asp?forum=1036&message=34248338
LKeithR
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31088734
magicone
http://forums.dpreview.com/forums/read.asp?forum=1036&message=27554660
Mark Dimo
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33123640
Mike V99
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33041441
mnovikov
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33039357
Moosemilk
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33211173
Neil Morgan
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33038703
nickmtl
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31007142
noser
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33059637
owmike
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33921500
Pakhead
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33787066
paul_do
http://forums.dpreview.com/forums/read.asp?forum=1036&message=30779252
Paul_E
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33059369
PentaxPoke
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33043538
picsbydan
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31458695
psu28k
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31458091
pundit
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33105329
Reg Quiring
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31555825
Richardday
http://forums.dpreview.com/forums/read.asp?forum=1036&message=35197534
RobertBarnett
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33063806
robt61x49
http://forums.dpreview.com/forums/read.asp?forum=1036&message=29441448
rogerstpierre
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31753287
ropen
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33041448
roxalo
http://forums.dpreview.com/forums/read.asp?forum=1036&message=31467906
Rupert60
http://forums.dpreview.com/forums/read.asp?forum=1036&message=30724929
SanMat
http://forums.dpreview.com/forums/read.asp?forum=1036&message=34554165
shane gerrish
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33038876
sinus007
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33041746
Sophie Wilson
http://forums.dpreview.com/forums/read.asp?forum=1036&message=26431788
SpartanWarrior
http://forums.dpreview.com/forums/read.asp?forum=1036&message=34537603
thxbb12
http://forums.dpreview.com/forums/read.asp?forum=1036&message=34310716
WildSammy
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33074041
Zevon
http://forums.dpreview.com/forums/read.asp?forum=1036&message=33039134
ZorKa
http://forums.dpreview.com/forums/read.asp?forum=1036&message=27981535

Thank you
Russell

Last edited by Russell-Evans; 04-30-2010 at 10:13 PM.
12-15-2009, 06:39 PM   #171
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Don't own an SDM lens...But I understood the lenses did not have a screw drive, just the AF contacts
12-15-2009, 06:44 PM   #172
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QuoteOriginally posted by arbib Quote
Don't own an SDM lens...But I understood the lenses did not have a screw drive, just the AF contacts
Pentax SDM lenses have both; at least my DA 50-135mm and DA 60-250mm do. I believe this is the case with all Pentax SDM lenses.

Third party lenses may be different. Sigma HSM (SDM equivalent) lenses do not have screwdrive.
12-15-2009, 07:15 PM   #173
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QuoteOriginally posted by SOldBear Quote
Pentax SDM lenses have both; at least my DA 50-135mm and DA 60-250mm do. I believe this is the case with all Pentax SDM lenses.

Third party lenses may be different. Sigma HSM (SDM equivalent) lenses do not have screwdrive.
OK, Now I can vote.....

EDIT: Voted
I will not buy a SDM lens until I have the ability to choose the focus mechanism.
I would like the 17-70 f/4 SDM...as my walk about lens when I don't need the f/2.8 as on my Sigma EX 24-70. Since one is FF and one is CROP lens, I don't mind the duplicate focal lengths. Who, Knows, I may load some film :-Q in my PK film camera for a true 24mm....OR...Pentax may someday have a FF DSLR... We'll See...I guess 2011 or 12 for under 1.7k. By then, Sony and Canon and Nikon may have a REAL sub 2k in the mix.


Last edited by arbib; 12-15-2009 at 07:27 PM.
12-15-2009, 07:16 PM   #174
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QuoteOriginally posted by SOldBear Quote
Pentax SDM lenses have both; at least my DA 50-135mm and DA 60-250mm do. I believe this is the case with all Pentax SDM lenses.

Third party lenses may be different. Sigma HSM (SDM equivalent) lenses do not have screwdrive.
The DA* lenses have both SDM & screw drive focus. But the new(ish) DA 17-70 is SDM only. On older non SDM cameras its manual focus only. That also means SDM failure = manual focus only and no firmware upgrade can correct that.

Last edited by calicojack; 12-15-2009 at 07:48 PM.
12-15-2009, 07:32 PM   #175
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QuoteOriginally posted by calicojack Quote
The DA* lenses have both SDM & screw drive focus. But the new(ish) DA 17-70 is SDM only. On older non SDM cameras its manual focus only. That also means SDM failure = manual focus onlyand no firmware upgrade can correct that.
DANG..... Well, then Pentax has to get a higher QC or something on SDM lenses... I don't hear of Sigma HSM failings in the forums across boards...
12-16-2009, 08:33 PM   #176
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I wonder how hard it would be to get seven people together to purchase these seven Tamron F 1.4x TCs for $1400. Two hundred a TC isn't bad for the Tamron. I think I've seen it go for $350 here.

SEVEN Tamron for Pentax 1.4X Pz-AF MC4 Teleconverters - eBay (item 110469105510 end time Jan-10-10 15:14:38 PST)



Thank you
Russell
12-17-2009, 05:32 PM   #177
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QuoteOriginally posted by Russell-Evans Quote
I wonder how hard it would be to get seven people together to purchase these seven Tamron F 1.4x TCs for $1400. Two hundred a TC isn't bad for the Tamron. I think I've seen it go for $350 here.

SEVEN Tamron for Pentax 1.4X Pz-AF MC4 Teleconverters - eBay (item 110469105510 end time Jan-10-10 15:14:38 PST)



Thank you
Russell
Wow, $350??? Good grief, I think I paid about $115 for a new one just over a year ago. The apparent effect of supply and demand!
12-17-2009, 10:34 PM   #178
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QuoteOriginally posted by Russell-Evans Quote
I wonder how hard it would be to get seven people together to purchase these seven Tamron F 1.4x TCs for $1400. Two hundred a TC isn't bad for the Tamron. I think I've seen it go for $350 here.
...

Thank you
Russell
I think you must be thinking of the Pentax-F 1.7x AF Adapter. Those go for $300-350, these 1.4x TCs (and their Kenko 1.5x cousins) go for around $90-120 generally if I'm not mistaken...

BTW, what does this have to do with SDM lenses???
12-18-2009, 03:48 AM   #179
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QuoteOriginally posted by heliphoto Quote
BTW, what does this have to do with SDM lenses???
This TC is one of the few that is reported to work with some of the SDM lenses. The lack of a SDM TC is one of the reasons for wanting the firmware to allow the use of the screw driven AF on dual drive lenses.

As for the price, I think I was remembering this post in this tamron-tc-converter-pics thread from long ago.


Thank you
Russell

Last edited by Russell-Evans; 12-18-2009 at 12:20 PM.
12-18-2009, 07:34 AM   #180
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The price on these has risen quite a bit lately. There have been sales as high as $275.00 on ebay and the most recent low price has been just over $150.00. You will not find these under $150.00 any more unless you score some hidden deal.

For a lot this size $1400.00 is too much. It should be $1000 to a max of 1100.00 ($157.00 - $140.00) that would be fair if someone wants to make the guy an offer.
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