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FA 28-105mm F3.2-4.5

Posted 16/05/2016 - 07:14 Link
Does anyone have experience of using this lens , the opinions are mixed in the Forums in the American website.

Posted 16/05/2016 - 08:48 Link
I've just finished doing a review of the lens, so hopefully that will be published here and on EPZ very soon.
Best regards, John
Posted 16/05/2016 - 10:43 Link
I'll look forward that John. I've had it for two days now and still getting to know it.
Pentax K-1| D-FA 24-70mm | FA 43mm F1.9 Ltd | FA* 85mm F1.4 | D-FA 100mm F2.8 Macro WR | DA* 200mm F2.8 | Pentax AF 540FGZ
Posted 16/05/2016 - 16:26 Link
joostdh wrote:
I've had it for two days now and still getting to know it.

So what is your first impression?
Posted 16/05/2016 - 17:22 Link
I am struggling to get really sharp photos with this lens on landscape and general views but managed a couple of acceptable ones at close-up so it's probably me. Nice blurred background though. One of the comments was that it's ok for a 'cheap' lens - at 529.00 I don't think so! I opted for this as a general walk-around lens on the K-1 in preference to the much heavier 24-70mm and I do find the combination very manageable.
Posted 16/05/2016 - 18:33 Link
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A couple of examples that didn't get into the review.
Best regards, John
Posted 16/05/2016 - 21:52 Link
K1 and D-FA28-105 @ ISO 3200:
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K1 and D-FA28-105 @ ISO 12800:
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Full exif in the pics.

Quick question as I can't find the answer, are we still limited to 1000 x 1000pix image size for posting in forums and the gallery?
LBA is good for you, a Lens a day helps you work, rest and play.
Edited by McBrian: 16/05/2016 - 21:55
Posted 16/05/2016 - 23:09 Link
To my eyes only John's first photo looks very sharp, this is the only one I have which I am happy with in terms of sharpness. The more distant the subject, the less good it gets.
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Posted 16/05/2016 - 23:44 Link
I find this lens pretty sharp if stopped down a bit and provided no filters are used. I have a Jacobs UV filter which I used for protection and a polariser. I have found that both seem to degrade the image - the polariser seemed to affect the focus - I tried to photograph a small flower this morning and could not get a correctly focused image but when I removed the polariser it was tack sharp. The photo of Leith Hill tower has simply been very slightly adjusted in the shadows but has not been sharpened.

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Posted 17/05/2016 - 01:07 Link
I am a little confused (happens more and more these days)

Are we discussing the new lens (D FA 3.5-f5.6) or the old FA 28-105 (f3.2-4.5)??

Posted 17/05/2016 - 07:43 Link
Good question. I was discussing the new D-FA lens, but now I'm not so sure!
Best regards, John
Posted 17/05/2016 - 07:51 Link
Erm, my comments are about the new lens so apologies to theonenadeem if that's not the one he is interested in. Maybe we should split this into two discussions?
Posted 17/05/2016 - 08:04 Link
The title indicates the aperture range as F3.2-4.5 ..... And indeed I've seen that lens listed in the database, an FA zoom designated AL (IF).
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Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Posted 17/05/2016 - 08:08 Link
Quite right, we seem to have got our wires crossed. I've just finished a very intense 10 days or so looking at four new Pentax lenses (28-105, 24-70, 15-30, 70-200) so the new 28-105mm was pretty much on my mind. That's my excuse anyway, so sorry to the OP if we got it wrong.
Best regards, John
Posted 17/05/2016 - 14:52 Link
As I said before, pictures such as the goose and 'Flying Scotsman' in particular fail to give me confidence that the K1 and/or new lens tracking autofocus performance is up to scratch (though I do note that Scotsman was visiting the Fife Circle well into the evening when light levels were declining).

Pentax K5
Pentax DA 18-55 Mk1, 50-200 (Samsung), 16-45, 55-300 Mk1, 35 f/2.4
Pentax MZ6 + FA28-90, FA50 f/1.4, M 50 f/1.7
Tamron 80-210mm & 28mm

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