Error Missing introduction and production dates of Pentax lenses

angerdan · 03-14-2018, 04:53 AM

Booth lenses are without year of introduction, so they appear in the lens search sorted by year at the top of the results - before the first AF lenses.
SMC Pentax-DA L 50-200mm F4-5.6 ED WR Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database
SMC Pentax-DA L 55-300mm F4-5.8 ED Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database

There are some AF lenses with missing information about production years.
Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database
Takumar-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database

Some lens introduction dates are available here:
List of announcement dates for Pentax lenses and bodies - PentaxForums.com
Pentax lens publish dates | List of publish dates for Pentax? | Flickr

Last edited by angerdan; 03-14-2018 at 04:59 AM.

Adam · 03-14-2018, 08:50 AM

Originally posted by angerdan

Booth lenses are without year of introduction, so they appear in the lens search sorted by year at the top of the results - before the first AF lenses.
SMC Pentax-DA L 50-200mm F4-5.6 ED WR Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database
SMC Pentax-DA L 55-300mm F4-5.8 ED Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database

There are some AF lenses with missing information about production years.
Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database
Takumar-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database

Some lens introduction dates are available here:
List of announcement dates for Pentax lenses and bodies - PentaxForums.com
Pentax lens publish dates | List of publish dates for Pentax? | Flickr

Nice catch! I've updated the two DA lenses and the 28-80mm, but I have no info on the 70-200mm. If anyone has a reliable source, please post here.

@Ole

angerdan · 03-14-2018, 10:34 AM

The Takumars are identical to the F-versions. So you could use their production dates

Pentax-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database
Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database

Pentax-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database
Takumar-F 70-210mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database

Adam · 03-14-2018, 11:02 AM

I'd rather not guess around, do you know that they were released at the same time?

Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)

PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

angerdan · 03-14-2018, 12:48 PM

They are physically identical, so the production only could take place in the same time as the smc-F labeled versions.
Earlier or later production wouldn't make sense and storing for later release would mean additional costs. So from financial view i can't see a reason for different production times.

Adam · 03-14-2018, 01:53 PM

Originally posted by angerdan

They are physically identical, so the production only could take place in the same time as the smc-F labeled versions.
Earlier or later production wouldn't make sense and storing for later release would mean additional costs. So from financial view i can't see a reason for different production times.

Right, but that's an assumption. The cheaper Takumar version could have succeeded the SMC version a couple of years later, for instance, and/or been discontinued earlier.

I can mention the SMC version's production dates as a note, but until we have a reference for those dates, I'll leave them as unknown.

angerdan · 04-14-2018, 04:18 PM

I'm sure the production years are nearly similar. Also better one year difference to the unknown date than no date at all.
When there's no source since the last 30 years, the will be no source for the next 30 years

angerdan · 10-10-2019, 12:36 PM

Who news more about the two versions of the F 70-200mm F4-5.6 & F 28-80mm F3.5-4.5?

angerdan · 05-28-2020, 02:09 PM

Who news more about the two versions of the F 70-200mm F4-5.6 & F 28-80mm F3.5-4.5?

03-14-2018, 04:53 AM	#1
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639	Missing introduction and production dates of Pentax lenses Booth lenses are without year of introduction, so they appear in the lens search sorted by year at the top of the results - before the first AF lenses. SMC Pentax-DA L 50-200mm F4-5.6 ED WR Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database SMC Pentax-DA L 55-300mm F4-5.8 ED Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database There are some AF lenses with missing information about production years. Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Takumar-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Some lens introduction dates are available here: List of announcement dates for Pentax lenses and bodies - PentaxForums.com Pentax lens publish dates \| List of publish dates for Pentax? \| Flickr Last edited by angerdan; 03-14-2018 at 04:59 AM.

03-14-2018, 08:50 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,593	Originally posted by angerdan Booth lenses are without year of introduction, so they appear in the lens search sorted by year at the top of the results - before the first AF lenses. SMC Pentax-DA L 50-200mm F4-5.6 ED WR Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database SMC Pentax-DA L 55-300mm F4-5.8 ED Reviews - DA L Zoom Lenses - Pentax Lens Reviews & Lens Database There are some AF lenses with missing information about production years. Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Takumar-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Some lens introduction dates are available here: List of announcement dates for Pentax lenses and bodies - PentaxForums.com Pentax lens publish dates \| List of publish dates for Pentax? \| Flickr Nice catch! I've updated the two DA lenses and the 28-80mm, but I have no info on the 70-200mm. If anyone has a reliable source, please post here. @Ole Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

03-14-2018, 01:53 PM	#6
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,593	Originally posted by angerdan They are physically identical, so the production only could take place in the same time as the smc-F labeled versions. Earlier or later production wouldn't make sense and storing for later release would mean additional costs. So from financial view i can't see a reason for different production times. Right, but that's an assumption. The cheaper Takumar version could have succeeded the SMC version a couple of years later, for instance, and/or been discontinued earlier. I can mention the SMC version's production dates as a note, but until we have a reference for those dates, I'll leave them as unknown. Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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03-14-2018, 10:34 AM	#3
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639 Original Poster	The Takumars are identical to the F-versions. So you could use their production dates Pentax-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Takumar-F 28-80mm F3.5-4.5 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Pentax-F 70-200mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database Takumar-F 70-210mm F4-5.6 Reviews - Non-SMC Pentax Zoom Lenses - Pentax Lens Reviews & Lens Database

03-14-2018, 11:02 AM	#4
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,593	I'd rather not guess around, do you know that they were released at the same time? Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

03-14-2018, 12:48 PM	#5
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639 Original Poster	They are physically identical, so the production only could take place in the same time as the smc-F labeled versions. Earlier or later production wouldn't make sense and storing for later release would mean additional costs. So from financial view i can't see a reason for different production times.

04-14-2018, 04:18 PM	#7
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639 Original Poster	I'm sure the production years are nearly similar. Also better one year difference to the unknown date than no date at all. When there's no source since the last 30 years, the will be no source for the next 30 years

10-10-2019, 12:36 PM	#8
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639 Original Poster	Who news more about the two versions of the F 70-200mm F4-5.6 & F 28-80mm F3.5-4.5?

05-28-2020, 02:09 PM	#9
angerdan Pentaxian Join Date: Feb 2015 Photos: Gallery \| Albums Posts: 2,639 Original Poster	Who news more about the two versions of the F 70-200mm F4-5.6 & F 28-80mm F3.5-4.5?

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