K-5's you bought new!?!

**Douglas_of_Sweden** · 11-01-2011, 10:30 PM

While your method is interesting I think there will be a serious error source.
I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error?

RonHendriks1966 · 11-02-2011, 03:32 AM

Originally posted by Douglas_of_Sweden

While your method is interesting I think there will be a serious error source.
I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error?

I'm aware of the error, that is in the Silver section. On the other hand it is also a nice place to who has what, since a lot of people are putting some words down here. The more entry's to the poll the more accurate the calculation, since those Silver owners probably are that kind of fan that they all enter there camera.

Well with only 4 Silver's the error is either zero, or 25 % or 50 % or 75 %, assuming that there should be at least one Silver in this group (mine

).

I also looked into the camera serial number datatbase and came to 125.000 units (going up to 200.000 for the error in calculation) for a very roughly calculation. I somehow still think that is a low number.

I assume that no-one has any idea about production- or salesnumbers?

obxeye · 11-02-2011, 07:01 AM

bought k7 spring of 2009. went to d700 jun 2010. sold that 2 days ago. k5 should be here tomorrow.

**jonk** · 11-02-2011, 11:56 AM

I decided on two K-5's (black) to start as I'm shooting on the run and like to have my DA*300mm dedicated to one body and the other body hooked up to my DA*16-50 for mostly HDR shots. Then after the Ricoh event I purchased a Silver K-5 which now has my DA*50-135 attached to it. I carry this set up in my truck and can pretty much handle any shot on the fly. I was thinking of going the full frame direction but I felt that the K-5 system will keep me happy until the other manufactures catch up.

**jonk** · 11-02-2011, 12:12 PM

RonHendriks1966 · 11-02-2011, 03:17 PM

Originally posted by Douglas_of_Sweden

While your method is interesting I think there will be a serious error source.
I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error?

Just put in a second poll on a different Pentax forum in my country. So that is smaller and would function as a reference, since I know more about that closed market.

View Poll Results: I bought new K-5's:
ONE K-5 black	134	91.16%
TWO K-5 black	8	5.44%
THREE K-5 black	1	0.68%
ONE K-5 Silver	7	4.76%
TWO K-5 Silver	0	0%
Multiple Choice Poll. Voters: 147. You may not vote on this poll

11-02-2011, 12:12 PM	#20
jonk Site Supporter Join Date: Jan 2008 Location: Woodland CA Photos: Gallery \| Albums Posts: 29	I love my Pentax K-5sss

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11-01-2011, 10:30 PM	#16
Douglas_of_Sweden Site Supporter Join Date: Apr 2008 Location: Stockholm Photos: Gallery Posts: 3,374	While your method is interesting I think there will be a serious error source. I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error?

11-02-2011, 03:32 AM	#17
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675 Original Poster	Originally posted by Douglas_of_Sweden While your method is interesting I think there will be a serious error source. I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error? I'm aware of the error, that is in the Silver section. On the other hand it is also a nice place to who has what, since a lot of people are putting some words down here. The more entry's to the poll the more accurate the calculation, since those Silver owners probably are that kind of fan that they all enter there camera. Well with only 4 Silver's the error is either zero, or 25 % or 50 % or 75 %, assuming that there should be at least one Silver in this group (mine ). I also looked into the camera serial number datatbase and came to 125.000 units (going up to 200.000 for the error in calculation) for a very roughly calculation. I somehow still think that is a low number. I assume that no-one has any idea about production- or salesnumbers?

11-02-2011, 07:01 AM	#18
obxeye Inactive Account Join Date: Oct 2009 Location: nc Posts: 73	bought k7 spring of 2009. went to d700 jun 2010. sold that 2 days ago. k5 should be here tomorrow.

11-02-2011, 11:56 AM	#19
jonk Site Supporter Join Date: Jan 2008 Location: Woodland CA Photos: Gallery \| Albums Posts: 29	I decided on two K-5's (black) to start as I'm shooting on the run and like to have my DA300mm dedicated to one body and the other body hooked up to my DA16-50 for mostly HDR shots. Then after the Ricoh event I purchased a Silver K-5 which now has my DA*50-135 attached to it. I carry this set up in my truck and can pretty much handle any shot on the fly. I was thinking of going the full frame direction but I felt that the K-5 system will keep me happy until the other manufactures catch up.

11-02-2011, 03:17 PM	#21
RonHendriks1966 Banned Join Date: Jan 2009 Photos: Gallery Posts: 9,675 Original Poster	Originally posted by Douglas_of_Sweden While your method is interesting I think there will be a serious error source. I am quite sure that most of the silver copies were bought by long term fans, pentaxians, and not ordinary average customers. The same people are heavily overrepresented in a forum like this. Hence the ratio between silver and black bodies you get from this poll is not usefull for estimates of the toal K-5 sales. It will be biased and underestimate the sales. What strategy do you have to estimate this error? Just put in a second poll on a different Pentax forum in my country. So that is smaller and would function as a reference, since I know more about that closed market.