Pentax lens 28-105mm

pentax K20 · 07-20-2014, 04:57 PM

I just purchased a pentax 28-105mm lens, SMC Pentax-fa, 1:3.2-5.5 IF & AL, I have not been able to find any information about the lens on line, can anyone help?
Bernie

Adam · 07-20-2014, 05:06 PM

Here's our lens DB entry for it:

SMC Pentax-FA 28-105mm F3.2-4.5 AL [IF] Reviews - FA Zoom Lenses - Pentax Lens Reviews & Lens Database

**ramseybuckeye** · 07-20-2014, 05:46 PM

This lens was made by Tamron and rebadged for Pentax, it also was rebadged as a Promaster. I actually had the Tamron and Promaster versions that I won in two auctions in the same week a couple years back. Both copies I had were excellent. I sold the Tamron when I bought a K-30 with an 18-135WR. I gave the Promaster to my daughter and it is usually on her K-x. If it doesn't come with a hood make sure to get one, it will help considerably. It is a light plastic lens so be carefully. The person that bought my Tamron broke it in a fall.

**TER-OR** · 07-21-2014, 05:59 AM

I have the Promaster, and can confirm it's a nice lens. Very quick focus and at 70mm it's quite sharp. Get a rubber hood, though.

northcoastgreg · 07-21-2014, 08:42 AM

Originally posted by ramseybuckeye

This lens was made by Tamron and rebadged for Pentax, it also was rebadged as a Promaster.

That's the non PZ f4-5.6 version, briefly released in the late nineties. The OP is referring to f3.2-4.5 version, released a year or two later, which is definitely a Pentax design. This FA 28-105 f3.2-4.5 is very compact for an FF zoom lens with it's range and features the same "ghostless" coating technology used in the FA limiteds.

**Just1MoreDave** · 07-21-2014, 10:48 AM

Originally posted by ramseybuckeye

... The person that bought my Tamron broke it in a fall.

I think if I drop my Power Zoom version, I'll try to jump clear so I am not crushed.

**ramseybuckeye** · 07-21-2014, 03:36 PM

Originally posted by northcoastgreg

That's the non PZ f4-5.6 version, briefly released in the late nineties. The OP is referring to f3.2-4.5 version, released a year or two later, which is definitely a Pentax design. This FA 28-105 f3.2-4.5 is very compact for an FF zoom lens with it's range and features the same "ghostless" coating technology used in the FA limiteds.

Sorry, My mistake! Hard to believe there are so many 28-105s.

Originally posted by Just1MoreDave

I think if I drop my Power Zoom version, I'll try to jump clear so I am not crushed.

I had one of those too, seemed like it weighed more than the DA*300.

07-20-2014, 04:57 PM	#1
pentax K20 New Member Join Date: Jul 2014 Posts: 1	Pentax lens 28-105mm I just purchased a pentax 28-105mm lens, SMC Pentax-fa, 1:3.2-5.5 IF & AL, I have not been able to find any information about the lens on line, can anyone help? Bernie

07-20-2014, 05:06 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,608	Here's our lens DB entry for it: SMC Pentax-FA 28-105mm F3.2-4.5 AL [IF] Reviews - FA Zoom Lenses - Pentax Lens Reviews & Lens Database 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:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pentax/Tamron AF 28-105mm f4-5.6 question	tibbitts	Pentax SLR Lens Discussion	2	03-10-2014 05:14 PM
For Sale - Sold: Pentax K10D with Tamron 28-105mm f4-5.6 lens	rockmaster1964	Sold Items	3	11-01-2012 09:31 AM
Sigma 28-105mm 1:2.8-4 lens hood	jolepp	Pentax SLR Lens Discussion	7	02-19-2011 02:13 PM
Tamron 28-105mm lens?	momof4	Pentax SLR Lens Discussion	2	12-07-2007 04:27 AM

07-20-2014, 05:46 PM	#3
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295	This lens was made by Tamron and rebadged for Pentax, it also was rebadged as a Promaster. I actually had the Tamron and Promaster versions that I won in two auctions in the same week a couple years back. Both copies I had were excellent. I sold the Tamron when I bought a K-30 with an 18-135WR. I gave the Promaster to my daughter and it is usually on her K-x. If it doesn't come with a hood make sure to get one, it will help considerably. It is a light plastic lens so be carefully. The person that bought my Tamron broke it in a fall.

07-21-2014, 05:59 AM	#4
TER-OR Site Supporter Join Date: Apr 2009 Location: Dundee, IL Photos: Gallery \| Albums Posts: 6,699	I have the Promaster, and can confirm it's a nice lens. Very quick focus and at 70mm it's quite sharp. Get a rubber hood, though.

07-21-2014, 08:42 AM	#5
northcoastgreg Pentaxian Join Date: Feb 2010 Location: Northern Michigan Photos: Gallery \| Albums Posts: 6,175	Originally posted by ramseybuckeye This lens was made by Tamron and rebadged for Pentax, it also was rebadged as a Promaster. That's the non PZ f4-5.6 version, briefly released in the late nineties. The OP is referring to f3.2-4.5 version, released a year or two later, which is definitely a Pentax design. This FA 28-105 f3.2-4.5 is very compact for an FF zoom lens with it's range and features the same "ghostless" coating technology used in the FA limiteds.

07-21-2014, 10:48 AM	#6
Just1MoreDave Site Supporter Join Date: Feb 2007 Location: Aurora, CO Photos: Gallery \| Albums Posts: 6,340	Originally posted by ramseybuckeye ... The person that bought my Tamron broke it in a fall. I think if I drop my Power Zoom version, I'll try to jump clear so I am not crushed.

07-21-2014, 03:36 PM	#7
ramseybuckeye Site Supporter Join Date: Apr 2009 Location: Hampstead, NC Photos: Gallery Posts: 17,295	Originally posted by northcoastgreg That's the non PZ f4-5.6 version, briefly released in the late nineties. The OP is referring to f3.2-4.5 version, released a year or two later, which is definitely a Pentax design. This FA 28-105 f3.2-4.5 is very compact for an FF zoom lens with it's range and features the same "ghostless" coating technology used in the FA limiteds. Sorry, My mistake! Hard to believe there are so many 28-105s. Originally posted by Just1MoreDave I think if I drop my Power Zoom version, I'll try to jump clear so I am not crushed. I had one of those too, seemed like it weighed more than the DA*300.