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Forum: Pentax SLR Lens Discussion 09-22-2017, 04:06 AM  
Samyang 85mm f/1.4 or SMC Pentax M 85mm f/2?
Posted By pleo
Replies: 63
Views: 3,226
I did!
I had the M 2/85 and sold it - the Samy 1,4/85 staying (beside the Pentax M 2,8/100).
The Pentax' advantage is being small and lightweight.
Yes: the old K 1.8/85 is quite a tad better in sharpness and contrast.... but at least 50% more expensive....

Another Option - if 2.8 will be 'fast' enough (I think it's all about small DOF and blurring Background - is for me the big&heavy 2.8/70-200 (Tamron).
Being an AF-lens I just don't care about wrong Manual focussing.

Same with my Sigma 1,4/50 HSM: very good for Portraits.

Besides I use Tamron 90 mm macro lens:
the old 2.5 makes a lovely background softness wide opened but good center sharpness (at 2.5 !) - stopped down it becomes an Overall very sharp lens.
The new 2.8/90 macro is very sharp even wide opened....
Forum: Pentax DSLR Discussion 08-07-2017, 06:11 AM  
handing down my *istDS
Posted By pleo
Replies: 8
Views: 766
Ds still going strong here too.
I prefer to use it with small primes up to the M 3.5/135
- but as well with some other manual focus lenses.
Real TTL-Flash (not only PTTL), pentaprism instead of pentamirror, small and lightweight but rigid, very good ergonomics.
AF is a bit of a pain.....
Forum: Pentax SLR Lens Discussion 08-07-2017, 05:52 AM  
Some Porst 50 1.2 Questions
Posted By pleo
Replies: 19
Views: 1,115
I had the Porst 1.2 (and the Revue 1.2/50) as well as the Pentax K 1.2/50.
The Pentax is by far the best of them.
If you want that creamy look, you can use filters.
The Porst never reached the same sharpness like the Pentax.
Nowaydays I ude the Pentax FA 1.4/50 for a softer look wide opened - stopped down the FA 1.4 ist very sharp.
It is quite hard to focus a 1.2-lens correctly.....
Forum: Troubleshooting and Beginner Help 04-25-2017, 06:54 AM  
DA 18-135mm ED AL IF DC WR Zoom Lens Focus problems
Posted By pleo
Replies: 10
Views: 744
I have exactly the same problem - and it's a question of the lens itself:
I have a second lens and another Body to check and compare...

So: is there anything I can do by myself to solve the problem or will it be necessary to send the lens to the repair station?
How much will they take for the repair ?
Forum: Pentax Forums Giveaways 10-19-2016, 06:02 AM  
Poll: Tie-breaker: M 85/2 vs M 100/2.8 vs FA 645 120/4 Macro vs FA* 28-70/2.8
Posted By pleo
Replies: 11
Views: 4,434
Exactly different here:

sold the 2/85 and using the 2.8/100 quite often.
The 85 being too soft wide open (up to 5.6) compared to the 100 and the Tamron 90 macro.


Besaide saying that:
The 645-lens 120 macro is superb!
Forum: Pentax SLR Lens Discussion 10-19-2016, 04:26 AM  
Pntax 24-90, 28-105, 100-300/4.7..., Tamron 28-300, Sigma 70-300...and new 15-30
Posted By pleo
Replies: 3
Views: 1,714
there is a difference between the 2 Versions of the Tamron 28-300 and Version II. !

In the german digitalfotonetz.de has someone tested the different versions....

I have the II. myself and I'm quite satisfied with it's results!
Forum: Pentax Q 05-02-2016, 11:44 PM  
Have Q7 or QS1 but still use Original Q?
Posted By pleo
Replies: 15
Views: 2,027
I'm still using both side by side - esp. in times when I don't want to Change the lens but simply take the other camera.
It's true:
IQ the Q7 is better
Build quality the original Q is better - and the IQ satisfatoring when there is enough light....
Forum: Pentax Q 01-04-2016, 12:13 PM  
Best bang for the buck long 300mm tele for Q?
Posted By pleo
Replies: 72
Views: 9,269
as for the colours of the Tamron:
I noticed the same with the SP 3.5/70-210 ... which therefore had to got.
(the Sigma mf 3.5-4.5/70-210 APO was simply better)

Sharpness of the Tamron lenses is really good.
The colours of the shorter Tamron adaptall lenses is different though.
I don't have any explanation for that but simply found it out on practice.
Forum: Pentax News and Rumors 12-17-2015, 03:02 AM  
Sigma 18-300 in K-mount
Posted By pleo
Replies: 68
Views: 11,234
The test ws made with a Nikon 300 - not a dslr with that much Need for good resolution!
We all kno quite well that the higher megapixel-sensors Need better lenses.
So this Sigma lens tested onaNikon 7200 would have been a fair and comparable test.

We know the same from some lenses ofthe 6 MP-aera.
When used on the 14/16-MP-sensors their good result was not realized any more.
The Tamon/entax-superoom lenses were tested on such dslr with much higher Rresolution..
Forum: Pentax SLR Lens Discussion 12-09-2015, 02:22 PM  
F1.2 Lenses
Posted By pleo
Replies: 56
Views: 4,181
It's not the field of a 1.2 lens to produce landscape shots!
Because of the small dof you will always find some regions that are not that sharp.

I had the K 1.2 and the Revue and the Porst (the last 2 because you could get them with film-slr as a kit-lens!)
The K was really sharp.
Better than A and FA 1.4!

As for those who take the FA for a comparison of sharpness:
The FA is well known not to be the best lens at 1.4!
The 1.7 has better sharpness wide opened then the 1.4 stopped down to 1.7!

The FA 1.4 has something different:
Special character (good for portraits) and (very) good sharpness from 2.8 on.
Forum: Pentax SLR Lens Discussion 12-02-2015, 03:19 AM  
F1.2 Lenses
Posted By pleo
Replies: 56
Views: 4,181
I once had the Porst and the Revuenon 1.2/55 .
I compared them with my old Pentax K 1.2/50 and the newer Pentax A 1.7/50.
Best was the K 1.2.
2nd the A 1.7.
Why?
Porst and Revue have really soft corners until you reach f 2.5.
But with this aperture die Pentax 50mm lenses are already really sharp and contrasty!
If you need a "soft-lens" und the 2.2/85 is too expensive the Porst/Revue will do.
For every other needs I recommend even a simple 1.7/50 from Pentax.
Forum: Pentax Q 11-02-2015, 07:01 AM  
Pentax Q7 and external flash?
Posted By pleo
Replies: 25
Views: 1,904
since the TO is new to using flashes, he should learn about it.
This will not happen when using the most modern state of the art flash systems that are described here.

Take some older flash with a sensor and a stand (like many of the older Metz flashes). Use the internal flash for main flash and triggering the bigger, more powerful flash aside, depending on your wants and needs.
I'm still using them this way.
In automatic mode they are performing really good!
You have to pay attention on the settings though (ISO, aperture, time).

I'm also using bigger flashes like Metz 50 MZ-5 where you have only a small interface on the hot shoe of the Q and the flash itself aside. Looks ridiculous but is the most powerful solution.
The small flashes mentioned above are simply not powerful enough for any longer distances!
Forum: General Talk 10-28-2015, 01:28 AM  
VW what do you think
Posted By pleo
Replies: 155
Views: 6,097
even gasoline exhaust is known to be carcinogen....

Gasoline engines exhaust have about 20% more CO2 than diesel.
Each type of engine has it's own fault.
But every diesel will consume less than it's gasoline counterpart.
So every liter/gallon of gasoline that is more consumed had to be transported and processed and again transported to the consumer.
Now - how much energy, how many gallons does this need on top of the need of the pure consumption in gasoline-cars?
How much of any echaust type does this make?

Every technology that reduces the consumption of cars has it's advantages in these aspects that are ignored quite often.
Forum: General Talk 10-19-2015, 07:04 AM  
VW what do you think
Posted By pleo
Replies: 155
Views: 6,097
Why could VW pass the emission ests?
Because these tests weren't live-cycle-tests!
They made the emission tests too cheaply !
So don't only blame VW but also every administration or company that enabled VW to pass these tests this way...
Forum: Pentax SLR Lens Discussion 10-19-2015, 06:55 AM  
Action Shots and AF speed with a Tamron 70-200 f/2.8?
Posted By pleo
Replies: 17
Views: 1,891
I have the Tammy and once had the Sigma 2.8 HSM.
The Sigma focusses more silently - that's what makes you believe it's faster.
It is told to be faster is AF-C (which I never use).

The Tammy is obviously sharper at 2.8!
.. and for me the AF is fast enough....
Forum: Lens Clubs 10-19-2015, 06:48 AM  
Adaptall Mount Club (Tamron).
Posted By pleo
Replies: 3,488
Views: 544,598
I don't think that's true.
I had both lenses and found them to be optically different.
... and that's what lens test from german "fotomagazin" said too.

I found the first one ('metal-version') to be superior in macro work but the later 'plasticky-version' more a short-tele (with additional macro-abilities).
The best is the later 2.8/90 macro though....
(I still have the 1st and the 2.8)
Forum: Pentax Q 10-06-2015, 04:44 AM  
My dad wants a small telephoto lens for his Q7 on his walks
Posted By pleo
Replies: 23
Views: 2,451
If not taking the 06 Telezoom I only use 50 - 135 mm lenses on the Q because every lens that is longer is too difficult to handle.
I really prefer the M 3.5/135 for the Q
... in addition to the 06 (15-45)
Forum: Pentax Q 10-05-2015, 12:33 AM  
Best bang for the buck long 300mm tele for Q?
Posted By pleo
Replies: 72
Views: 9,269
200 mm x 5.5-crop-factor = 1100 mm lens on full frame (or film) slr is not enough?!?
:eek:
Forum: Pentax SLR Lens Discussion 09-29-2015, 06:04 AM  
Vintage-A vs vintage-K
Posted By pleo
Replies: 47
Views: 3,826
@ K 1.8/55 vs A 1.7/50
I had both.
Now only the A - why?

Yes: build quality of the K-series is better. A-series is not bad at all but the K is better. It's different!

The K has better center sharpness but the A better sharpness throughout the picture field.
Sharpness increases fast with the A: 2.8 or 3.5 is enough. With the K you need to stop down at least 1 f-stop to get similar sharpness/results.

Colour:
They are different!
The K more like a painting, the A more 'clean'.

PF:
The A is better due to better/improved coating.


Which one to buy?
As an investment I'll take the K - just for sentimental reasons of the handling.
For practical use only I'll take the A.
Forum: Pentax SLR Lens Discussion 09-29-2015, 05:32 AM  
Vivitar Series 1 24-48 Wide Zoom f3.8
Posted By pleo
Replies: 2
Views: 3,722
yes, tested quite high (in german fotomagazin) but my copy turned out to be not good at all:
Sharpnes lacking throughout the focal ranges.
Only 24mm satisfiying.
Build quality satisfying - but handling was a bit 'irritating'.
Center of weight moving when zooming.
Variofocus: sharpness moving when zooming (you cannot zoom in, adjust sharpness and then zoom out...)
Forum: Pentax SLR Lens Discussion 09-29-2015, 05:27 AM  
Disappointed with Pentax-A 2.8/28mm
Posted By pleo
Replies: 42
Views: 2,963
coming from a Zeiss 28mm I guess nearly every other 28mm lens will disappoint....

I have the A 2.8/28 too.
I sold my old one years ago and bought one once again.
At 2.8 there is corner fall-off - but when stopped down (at 4 or 5.6) IQ increased and I had no zoom-lens that outperformed this A 2.8/28 at 5.6 - Tokina AT-X 2.6-2.8/28-70 neither.
Forum: Pentax SLR Lens Discussion 09-29-2015, 05:05 AM  
What are the best Adaptall lenses?
Posted By pleo
Replies: 24
Views: 3,033
having had many and still have some adaptall-lenses:
2.5/28: good sharpness on dslr
28-70: 2 different lenses! 62mm filter is much better than the later 52 or 55mm version. No exceptional sharpness but very constant IQ over all apertures and focal lengths. Very low distortion!
SP 28-80: much better lens than the 28-70! Better build quality too.
35-135: not used on dslr.... good IQ on film slr, quite heavy, focus/zoom ring a bit stiff, there are 2 different versions - I had the lens with an additional macro-ring for enlarging the distance of the glass elements.
2.8/35-105 : not the same mechanical quality as the older adaptall-lenses (mine was weak)
2.5/90: 2 different versions! the first full metall and superb build quality, Macro lens: full opened not that sharp (good for portraits though!) but constantly increasing sharpness even at F 16! The newer one has a more plastiky body and a plastic window over the distance scale.
2.8/90: better lens when you're looking for a short tele that's very good even at 2.8. Love it for the IQ! Build quality far from the first 2.5/90.... :-(
3.8/70-210: good sharpness, low contrast, lightweight but long telezoom with very good IQ at short distances! Not used on dslr....
SP 3.5/70-210: very good build quality but optical problems on dslr - very good on film slr though. Sold it due to handling issues on Pentax Ds.... you need a bigger handgrip to hold: very long and heavy...
SP 5.6/300 macro: my favourite because sharpness is better than every xx-300 AF-Zoom I tried. Good build qulity and nevertheless quite lightweight. Good handling. Look for it!
Forum: Pentax SLR Lens Discussion 09-29-2015, 04:26 AM  
Why did the 135mm focal length lose so much popularity over the years?
Posted By pleo
Replies: 41
Views: 3,355
the M 3.5/135 is my favourite on dslr and Q
- because it is so handsome and offers great IQ.
It never seems to have such a long focal length so people don't think about you when you're taking pics.
Forum: Pentax SLR Lens Discussion 09-29-2015, 04:19 AM  
Pentax A135/1.8 vs Samyang 135/2
Posted By pleo
Replies: 30
Views: 3,684
I had the A* 1.8/135 for some years (sad enough that I sold all my 3 *-lenses due to financial reasons):
It's simply great optically - at 2.8 already near best performance.
One thing with the *-lenses is/was, that they have a FREE-construction (fixed rear element) so that you have great performance at close and far distances. Most lenses have only 1 point with really good /best performance. Nowadays often distances that are used for lens tests....

The A* can be used with great results with TC too!
Forum: Pentax Q 09-29-2015, 03:58 AM  
Best bang for the buck long 300mm tele for Q?
Posted By pleo
Replies: 72
Views: 9,269
as for 300mm I prefer my Tamron SP 5.6/300 macro.
Better than
Sigma AF 4/100-300
Sigma AF 70-300 APO
Tamron AF 70-300 Di

But:
Haven't tried it on my Q/Q7 but only on my Pentax dslr.

Problem with focal lengths like this is: handling!
Therefore I prefer to reduce to my Pentax M 3.5/135 which is a really good lens for the Q.
BTW: I preferred it over the K 2.5/135 (different colour & contrast, heavier and therefore handling problems too) which doesn't outperform the 3.5 on the Q.
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