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Forum: Pentax SLR Lens Discussion 11-20-2018, 12:59 AM  
Pentax A* 135mm f1.8
Posted By pleo
Replies: 82
Views: 6,541
yes - handling of the M 3.5/135 is a joy!
The A* requires a bigger handgrip for handling.
When using my Q I would never think about the A* but with the M 3.5 (which gives 742 mm equiv. !!!) it's really quite good!

Even with my trusty Ds I prefer only smaller lenses.
Forum: Pentax SLR Lens Discussion 11-12-2018, 04:34 AM  
Vivitar S1 70-210 f2.8-4 vs Tamron 70-210 f3.8-f4
Posted By pleo
Replies: 13
Views: 616
No, but I have an old lens test from german 'photomagazin' and I have made my own testings.
If you can find one:
take in Hands, handle it - I'm quite shure, you'll buy it!
(if not too pricy)

The AF-Version is not built the same way and - perhaps because of less tight fixing of the lenses due to AF - optically not exactly the same class even though the constuction should be identical.

The 50-200 was (one of) the first APO-lens(es) by Sigma and for the Prices in those days (80's) very pricy for a brand like Sigma.
(Their reputation wasn't that high as it's nowadays.)
Therefore these manual focus APO-lenses from Sigma are not to be found that often....
Forum: Pentax SLR Lens Discussion 11-06-2018, 02:09 AM  
Recommend me budget 300mm for kid activities
Posted By pleo
Replies: 24
Views: 857
I compared the 55-300 with Sigma 70-300 APO and the Pentax was obviously sharper at 300 mm!
The Sigma DL is worse than both.
The Tamron 70-300 Di is very sharp but loud and slow focussing.

A bit different is the Sigma 70-300 OS:
Better build Quality.
The AF faster than the lenses mentioned above - quieter focussing too.
The OS in the lens is quite good too and stabilzing the viewfinder.

But all these lenses are not fast lenses.
Therefore I'd recommend the Tamron 2.8/70-200 (if you cannot afford the Pentax 2.8)
It is much sharper so you may crop the additional difference to the 300 mm.
At 2.8 it is sharper than the Sigma 2.8/70-200 (whatever version).
Focussing fast (but not as quietly).
It is bigger and heavier.
It has a very good tripod/monopod-clutch-ring.
I'd recommend to use one....

In my comparisons the best 300 mm results came out of the old manual focus Tamron SP 5.6/300 macro.
The 'modern' AF telezooms reached it's sharpness wide opened only when stopping down 2 f-stops.
For sports photos I'd prefer AF though...
Forum: Pentax SLR Lens Discussion 11-06-2018, 01:42 AM  
Vivitar S1 70-210 f2.8-4 vs Tamron 70-210 f3.8-f4
Posted By pleo
Replies: 13
Views: 616
I had a lot of the lenses mentioned above.....

The Vivitar S1 is quite a lot heavier than the Tamron 3.8-4/70-210.
There is an older Version of this lens:
3.8-4/80-210
It has a better reputation for optical qualitiy but is heavier. I never had this lens in Hands - only read about it.

I found the 3.8-4/70-210 to be handled very good.
Smooth, light weighted, short minimum focus distance - but contrast a bit low when wide opened.
The S1 though has the same problems ....
When you find the Tamron - take care that you have the hood too.

The Tamron 3,5/70-210 is different beast:
much longer with true macro capabilities.
Wide opened not THAT good (there I prefer the Pentax A 4.0 or - if weight isn't an issue - a 2.8-tele zoom: at 4.0 - will say: stopped down 1 f-stop - they will perform very well!)
The 3.5 producing different colours!
If you can test one you may notice and decide wether you like them or not.
Much colder ....
When I had this lens I thought it may replace my 2.8 tele zoom for indoor sports .... but it didn't.
On the other hand: I know of some very good results with it for macro and portrait work.

One other recommendation from me (quite seldom though)
Sigma APO 50-200 or 70-210
True APO lenses and very good build quality.
The 70-210 APO out performed the Pentax A 4.0 in my testing....

If you are looking for a true small and light weight tele zoom:
Pentax 50-200!
Yes - with AF and stopped down by 1 f-stop it performs good!
... and I doubt you'll find anything smaller with 200 mm!
Forum: Pentax SLR Lens Discussion 11-05-2018, 07:03 AM  
Pentax A* 135mm f1.8
Posted By pleo
Replies: 82
Views: 6,541
For me the 135 mm-focal length is perfect for my indoor sports photos - preferably Badminton.
Before I used 85 mm but had too much surroundings - and the K 2.5/135 as well as / even more the A* 1.8/135 are much sharper than the 85 mm or the 80-200!
Perhaps the new Pentax 2.8/70-200 is sharper though?

@beholder
As far as I know you cannot buy the Samyang 2.0/135 new any more - at least here in Germany.....
Ah ... and the Porst 1.8/135 goes for more on eBay than the Price you value the A* ....
Forum: Pentax SLR Lens Discussion 10-30-2018, 06:50 AM  
Pentax A* 135mm f1.8
Posted By pleo
Replies: 82
Views: 6,541
I had the A* and the K 2.5 and the 2.8 - and the Spiratone Plura-Coat (as it seems, branded Porst 1.8/135 in Germany).
I collected all lens Tests form the late 70's to the early 90's and remember many 135mm-comparison Tests.

The Porst is weak at 1,8 to a degree, that you wouldn't use it instead of making soft pics.
Beginning at 2.8 it starts to produce sharp pics - in the Center with the edges falling off.

The A* is a bit soft (less contrast) wide opended with quite good sharpness in the center but light fall-off to the edges.
Stopping down this fall-off was reduced to Zero and sharpness war VERY good from 2.8 on.

The A* is simply sharper than the K 2.5 at same apertures.
The K 2.5 sharper than the 2.8/135 from Pentax.

Some Things that are very special with the A*:
As those 3 *-lenses it has a FREE-design (fixed rear lens element). Due to this design it is very good even at very close distances - where most tele lenses lack a bit.
I used it for some macro-works and the results outperfomed those from true macro lenses (Pentax and Tamron).
It is therefore very special for portrait work too.
The focussing ring is much smoother and with more degree than the competition (not knowing the Samyang though) and therefore much easier and more precisly to focus.
The A* can be used with TC with very good results - you cannot say that for every lens, esp. not for all 2.8-Zooms! There have been tests with regard to the use of TCs and even the 2.8/135 were not really good with them (but the Zeiss 2.8/135 was!)

The price that was posted by Beholder is ridiculous:
Even the F/FA 2.8/135 go more more.....

As for the competition:
In those days even the Zeiss 2.0/135 was not really better in the comparison than the A* - and the CaNikon rivals left behind ....

If sharpness is everything that counts you have to go with other lenses.
If rendering and macro abilities count and you love to focus manually (!?!) the value of the A* is really high.
- and the A* is much easier to handle than any 2.8/70-200 lens!
I'm still very sad that I sold my 3 A*-lenses due to the need of money.

@Beholder
why do you always call for 36 MP-pics?
Not all of us are using those fullframe-bodies!
... with good reason!
Forum: Pentax SLR Lens Discussion 10-30-2018, 05:32 AM  
Which 3rd party PK lenses you treasure the most?
Posted By pleo
Replies: 75
Views: 4,534
As many others before I very much like the Performance and handling of the old Manual Tamron adaptall-lenses - esp. the SP series.
My fav is (not a wonder at all) the 90 mm macro: the old full Metall Version as well as the latest 2.8/90 which is very sharp even at f 2.8.

I loved the build quality of the Manual Tokina AT-X lenses - the new AF-versions are optically better but different in feel and touch.
I sold them because they didn't fit to the Ds and the old 2.6-2.8/28-70 couldn't hold with the new AF-lenses from Pentax.

I regarded theTamron and Tokina lenses much higher than the Sigma in the 80's - but with one exception:
Sigma 3.5-4.5/70-210 APO
A true APO lens with very good focussing ring!
It outperformed the Pentax A 4/70-210 and Pentax AF 4-5.6/70-210 on dslr.
I found it to be better than many if not most of the modern 70-300 lenses.
Special rendering and colour too!
I simply love this lens.


I had the superb Zeiss Planar 1.4/50 ZK for quite a while: a superb lens - even better than the Pentax K 1.2/50!
But focussing at 1.4 is too difficult for me in the meantime....
Forum: Pentax Q 04-30-2018, 08:58 AM  
Best bang for the buck long 300mm tele for Q?
Posted By pleo
Replies: 82
Views: 13,571
that's what I found too.
The best 300 mm-lens for the Q in my Collection is a manual focus Tamron SP 5.6/300 - sharper than every AF-zoom-lens wide opened.
Stopped down there is still an Advantage for the prime.
I found 300 mm to be too Long for the Q and prefer using a manual Sigma APO 3.5-4.5/70-210 for the longest range.
As for the handling I prefer a small M 3.5/135 or the phantastic Tamron SP 2.5/90 macro .
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: 77
Views: 7,708
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: 997
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: 1,452
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: 12
Views: 1,331
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: 5,064
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: 2,110
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: 2,567
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: 82
Views: 13,571
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: 12,155
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: 4,697
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: 4,697
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: 2,293
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: 7,182
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: 7,182
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: 2,376
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: 3,659
Views: 611,105
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: 2,690
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)
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