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11-11-2013, 07:38 PM   #796
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QuoteOriginally posted by Digitalis Quote
Actually, pretty much any lens can produce that kind of bokeh. At a close focus distance, at wide apertures, under harsh Australian sunlight, with bright specular highlights in the background - Images like that nearly always produce horrible results.The only exceptions to that rule are apochromatic lenses, which due to their superior optical correction are largely immune to producing bokeh like that.
The solution is simple - Don't take photographs in Australia.

11-11-2013, 09:30 PM   #797
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QuoteOriginally posted by LFLee Quote
need to pay attention to my 77mm bokeh next time
The funny thing is the FA31 was utterly incapable of replicating that kind of bokeh, when I used it with the same scene with the same lighting and subject magnification. The SMCP-K 50mm f/1.2 likewise failed at producing bad bokeh with the same scene at its widest aperture.

Go figure.
11-11-2013, 10:16 PM   #798
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QuoteOriginally posted by Digitalis Quote
The funny thing is the FA31 was utterly incapable of replicating that kind of bokeh, when I used it with the same scene with the same lighting and subject magnification. The SMCP-K 50mm f/1.2 likewise failed at producing bad bokeh with the same scene at its widest aperture.

Go figure.
Um...that's because the FA31 was designed on God's own workbench. How dare you even act surprised that it proved to be infallible.
11-11-2013, 11:19 PM   #799
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Problem is, god is still contemplating a digital FF for Pentax. Lol

On topic, I am pretty sure this lens will be highly scrutinized/tested during the lens review since it is really asking a steep value.


Last edited by wed7; 11-12-2013 at 12:00 AM.
11-13-2013, 05:14 AM   #800
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QuoteOriginally posted by rob1234 Quote
Reminds me of the old M28-50 in look.
And a surprisingly good little lens it is. Fabulous colour saturation and near as sharp as the equivalent M primes.
11-13-2013, 06:37 AM   #801
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QuoteOriginally posted by southlander Quote
And a surprisingly good little lens it is. Fabulous colour saturation and near as sharp as the equivalent M primes.
IMO the Sigma 18-35 bokeh is MUCH worse than this (but has a lot of things for it, I'm strictly talking bokeh).
At least *I* find it a lot more disturbing.
11-16-2013, 01:14 PM   #802
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bokeh plus other things

Sorry, did not read all 54 pages. Here is a review of the features listed on B&H. Something not mentioned so far (I think) is Quick-Shift.

Pentax K Mount
30.5-61.5mm (35mm Equivalent)
Aperture Range: f/2.8-32
ED and Super-Low Dispersion Elements
High-Grade Multi-Layer HD Coating
Weather-Resistant Seals and SP Coating
Smooth & Quiet DC Auto Focus Motor
Quick-Shift Focus System
Rounded Nine-Blade Diaphragm
First Limited Series Zoom Lens

The bokeh will be important too. Some software can tweak bokeh to lessen the effect of onion-bokeh. Will be interesting to see test reviews.
11-17-2013, 06:27 AM   #803
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QuoteOriginally posted by goldenarrow Quote
Some software can tweak bokeh to lessen the effect of onion-bokeh.
goldenarrow, I find that very interesting, because my Pentax lenses are no bokeh heros, in terms of onion rings. Which software can help fixing that? Some lenses (at least the 77mm) are particularly noughty, as they produce greenish onion rings around a violet interior. Could this be fixed as well?


Last edited by Frater; 11-17-2013 at 06:28 PM.
11-18-2013, 07:01 PM   #804
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QuoteOriginally posted by Frater Quote
goldenarrow, I find that very interesting, because my Pentax lenses are no bokeh heros, in terms of onion rings. Which software can help fixing that? Some lenses (at least the 77mm) are particularly noughty, as they produce greenish onion rings around a violet interior. Could this be fixed as well?
The only one I am familiar with is the somewhat subtle effect with DxO Optic Pro. If the lens is in their database, a slider shows up to blur the existing bokeh more. It is very unsophisticated but does an OK job.

I think there is also Alien Skin's "Bokeh 2", but have not seen nor heard much about it since a couple years ago.
www.alienskin.com/bokeh/examples

I don't know of anything that can get rid of green and violet rings inside the bokeh circles. That would seem to be a big step in complexity for software to handle that. Maybe someone else has an idea if that is possible??


Last edited by goldenarrow; 11-18-2013 at 07:07 PM.
11-19-2013, 11:37 AM   #805
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The point of this lens is to create market points.

20-40 WR pairs with the revamped 55-300 and the upcoming wide angle (probably WR) for a 3-lens set-up making room for a "fast 50" or the DA*55.

You can get 20-300mm in a 2 lens kit with only a 40-55mm gap which in APS-C is not a banger FL.

And if you read the roadmap you'll see the 18-135 may soon have an accompanying 120-380ish FL zoom, probably also WR and maybe even DC and likely in the $1,300 range, or less. That's another 2 lens kit.

And you have the lower-end 18-55 and 50-200 WR models as well.

That's 3 2-lens systems, all with a WA option, and all WR (or pending).

And 4 if the 16-50 + 50-135 or 60-250 are added in.

The Pentax APS-C line-up is pretty solid with zooms save for a long one competing with the 100-400 and an upgraded WR wide zoom.
11-19-2013, 12:52 PM   #806
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QuoteOriginally posted by Aristophanes Quote
And if you read the roadmap you'll see the 18-135 may soon have an accompanying 120-380ish FL zoom, probably also WR and maybe even DC and likely in the $1,300 range, or less. That's another 2 lens kit.
I hope not. I'm hoping for f/4 throughout the range (f/2.8-4 with f/2.8 until at least 175mm would be even better!) and a $2500-3000 MSRP because it will have the same IQ and build quality of the DA* 60-250. Not that I am going to fork over that amount of money, but Pentax needs a no BS pro-grade telezoom. The DA* 60-250 absolutely qualifies, except it is too short. If Pentax is going to attract those begging for a 7DII/D400, that is a lens that will entice them to get the K-3. Not another Sigma-esque 50-500 type f/6.3 zoom. Everything I've read is "it's a phenomenal camera! Finally the camera we've been waiting for....but no hardly any pro grade long primes/zooms. So I guess I'll just stay with my Canikon." And they're right.

Regarding lens combos, the DA* 16-50 + DA* 60-250 is just sublime.

-Heie
11-19-2013, 01:57 PM   #807
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QuoteOriginally posted by Heie Quote
no BS pro-grade telezoom. The DA* 60-250 absolutely qualifies
In my mind the F/4 makes the 60-250 a 'slight-BS' telezoom. Might not matter too much to me but the 'no-BS' zoom is a 70-200 F/2.8.
11-19-2013, 03:43 PM   #808
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Considering that Sigma has already a 120-400 f5.6 zoom at 750 euros, I guess Pentax should release a lens in another league, more pro-grade oriented lens. A leak on a japanese forum has mentionned a 100-400 lens, without specification about how fast it is. May be a f4.5 lens which will autofocus with the soon to be released (hopefully) converter ?
11-19-2013, 04:28 PM   #809
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QuoteOriginally posted by ElJamoquio Quote
In my mind the F/4 makes the 60-250 a 'slight-BS' telezoom. Might not matter too much to me but the 'no-BS' zoom is a 70-200 F/2.8.
IMHO that will be a lens for a larger image circle.
11-19-2013, 04:32 PM   #810
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QuoteOriginally posted by Heie Quote
I hope not. I'm hoping for f/4 throughout the range (f/2.8-4 with f/2.8 until at least 175mm would be even better!) and a $2500-3000 MSRP because it will have the same IQ and build quality of the DA* 60-250. Not that I am going to fork over that amount of money, but Pentax needs a no BS pro-grade telezoom. The DA* 60-250 absolutely qualifies, except it is too short. If Pentax is going to attract those begging for a 7DII/D400, that is a lens that will entice them to get the K-3. Not another Sigma-esque 50-500 type f/6.3 zoom. Everything I've read is "it's a phenomenal camera! Finally the camera we've been waiting for....but no hardly any pro grade long primes/zooms. So I guess I'll just stay with my Canikon." And they're right.

Regarding lens combos, the DA* 16-50 + DA* 60-250 is just sublime.

-Heie
Heie,
the Canon and Nikon 200-400mm/4 cost more than 2500-3000$, there is no way a constant f/4 lens of that focal length will cost just 2500-3000$. The newer Nikon 80-400mm/4.5-5.6 and the Sony 70-400mm/4.5-5.6 cost arount that 2500$ !!!
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