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Forum: Pentax Full Frame 4 Days Ago  
Pentax K1 II vs Nikon D850
Posted By Papa_Joe
Replies: 38
Views: 1,797
Mind you can use the lenses for the K-1 on the K-500 also. Think of the FA limiteds for example.


What I do not get is why you want to buy a K-1 for landscape, while you own a K-70. I own both and I would say the image quality of the K-1 is not so much better to be crucial for landscape.

If you use the 18-135 up to 50 mm and stop it down by one f-stop you allready have a very nice lens for landscape photography as well.
Forum: Pentax SLR Lens Discussion 4 Days Ago  
Need a 24mm prime lens. Any recommendations?
Posted By Papa_Joe
Replies: 23
Views: 839
I would prefer the Sigma 24 2.8 super-wide in AF or manual over the 1.8 which will lack sharpness in the corners until significantly stopped down.

The Tamron RMC II 24mm 2.8 will give you quite good results on film cameras too.
Forum: Pentax K-70 & KF 11-25-2022, 04:07 AM  
Pentax KF Solenoid
Posted By Papa_Joe
Replies: 12
Views: 848
We have a member on the german forum (pentaxians.de) who got very deep into the solenoid thing, not only repairing the afflicted cameras, but also researching the technical aspect and the various solenoids used. I have utter tust in his verdict.

According to him the latest generation of solenoid built into the K-70 since start of 2020 is a reliable one.
Forum: Monthly Photo Contests 11-23-2022, 01:13 AM  
Poll: Expired Contest Poll VOTE NOW - Photo Contest #194 Poll (Fill the Frame - October 2022)
Posted By Papa_Joe
Replies: 26
Views: 2,243
This is a really tough decision. Congratiulations to all participants. Outstanding work!
Forum: Pentax SLR Lens Discussion 11-18-2022, 03:50 AM  
SMC FA 35mm lens won't open up when stopped down/replacement?
Posted By Papa_Joe
Replies: 2
Views: 344
As pschlute stated it is probably a mechanical issue, those should be inexpensive to fix. So I would suggest you call the official pentax repair shop and ask them for a non binding estimate of the repair costs, so you have an idea for the amount to think about.

If repair is no solution, you are quite in a dilemma, as the cheapest modern equivalent is the same lens new, now with a HD coating. If you need it for APS-C you can go for a DA 35/2.4 instead. Every other solution will probably cost you more. Even if you are going for a used lens, a used FA 35 is the best bet. Because the additonal issue is that the FA 35/2.0 has a very, very high IQ besides the purple fringing wide open.

Nonetheless as modern equivalents there are the allready mentioned Pentax DA 35/2.4 AL (APS-C), the DA 35/2.8 ltd. macro (APS-C) which I would rule out as it has not the same IQ as the FA35 and the Sigma 35/1.4 Art (FF) which I own and would also not suggest as a replacment, at it is expensive and bulky and heavy as a tank and in my opinion does not pull ahead the FA35 in terms of image quality so much to negiate those three negative points. *)
Note, that other forum members probabyl have other opinions about the DA ltd. macro and the Sigma Art, but these are just my two cents.

*) I bought it for the 1.4 aperture, as I wanted an APS-C equivalent for a 1.7/50 on Full frame and I still ponder if I should not buy the FA 35 as well.
Forum: Pentax DSLR Discussion 11-15-2022, 03:51 AM  
Pentax KP or Pentax K-1?
Posted By Papa_Joe
Replies: 17
Views: 1,156
I own a K-70 and a K-1, which I bought for astophotography and portrait. A KP was also on the list, when I decided to buy the K-70. Main reason for the K-70 was the price difference (substantial) in comparison to image quality (not so much). The K-1 came later for a very good price, but I also owned three very good full frame lenses (35mm, 70mm and 70-200 mm), so it was a no brainer.

First of all, as other members of the forum have suggested. Try the K-1 in comparison to the K-70. If you like it better, do you have very good full frame lenses abvailable? The K-1 as well as the K-70 and the KP shine with better lenses. So if you do not have very good ones allready, go for a used K-70 and buy some of these first.

My personal opinion of K-1 versus K-70 is, I like the K-1 more. Handling is more fun, the jpges are much better and the depth of field is breathtaking. Image quality overall is comparable and not a reason to decide for FF or APS-C. On the other side it is much heavyer and if you have to take your full frame lenses from the current Pentax setup, you will substanially ad up weight, not to talk about spending money. The the K-70 ist still my main camera though, as I have all the lenses I need and it fits easier into its bag with two lenses and a flash.

Concerning astrophotography, the K-70 and the K-1 in my opinion are the most suitable in the Pentax line-up. I would count the KP into the same league, but its screen is not as suitable for upright orientation. The K-1 has built in GPS as well, so if you want to use two cameras with the astrotracer side by side, you save the expenditure for a second O-GPS.

The K-1 is better suited for normal to wide angel lenses, as it will catch about 2 times more photons, with a lens of the same viewing angle and f-stop. The K-70 is better suited for deep sky photography where its resolution and crop factor count more then the additional dynamic range of about 1-2 stops of the K-1.
Forum: Pentax News and Rumors 11-08-2022, 07:07 AM  
Pentax KF
Posted By Papa_Joe
Replies: 425
Views: 29,510
Where is the wild speculation? In accordance to what I said, isn't it? :rolleyes:

If speculating about the screen - I would think there will be no touch screen, as to expensive and not compatible with the flip screen.

And I am really curious which sensor it will be. I am only sure, it will not be the one of K-1.
Forum: Pentax News and Rumors 11-08-2022, 02:20 AM  
Pentax KF
Posted By Papa_Joe
Replies: 425
Views: 29,510
I think we do not have to do wild speculations, just look at the past.

Updates from the K-XX series always got the AF-module and metering sensor of the discontinued top model. As well as an updated processor.
A new sensor is also most probable, as the one of the K-70 is expected to be out of production.
So what probably will hit the market, will be a K-70 - flip screen and selenoid included - with the modules of a KP.
Thus it might be called a follow up to the KP instead to the K-70. Hence the new name.
And of course the selling price will be closer to the KP as to the K-70.
A beast of a midrange camera.

Only thing I really wonder about: What will happen to the K-70. Probably discontinued due to lack of sensor.

There will be of course no module from the K-3 iii in the KF. They are not stupid at Ricoh.
Forum: Pentax SLR Lens Discussion 10-31-2022, 01:52 AM  
HD DA 21mm Ltd vs 35mm Ltd vs 20-40 Ltd
Posted By Papa_Joe
Replies: 37
Views: 1,829
If you see the sharpness of the 21 DA as an issue you should not take the 20-40 mm into account.

HD Pentax-DA 20-40mm F2.8-4 Limited Review - Sharpness | PentaxForums.com Reviews
Pentax-DA 21mm F3.2 Review - Image Quality | PentaxForums.com Reviews
Forum: Pentax SLR Lens Discussion 10-31-2022, 01:12 AM  
S-M-C Takumar Wide-Angle Open-Aperture Metering
Posted By Papa_Joe
Replies: 13
Views: 609
As allways Eric has given a very correct and comprehensive overview of the topic.

If you want to read a bit more you can have a look at the following article, but the part about which lens has which coupling contains no more information then Erics answer, so you may just spare to read it as well.

The Evolution of the Pentax M42 Mount - Articles and Tips | PentaxForums.com
Forum: Pentax SLR Lens Discussion 10-28-2022, 01:21 AM  
Thoughts on DFA*50 1.4 vs DA*55?
Posted By Papa_Joe
Replies: 47
Views: 1,873
The conclusion of the in depth review on the D FA 50 supports all the recommendations above (D FA 50 over DA 55 in terms of IQ) and there is an additional shoot-out you might like to read.

HD Pentax-D FA* 50mm F1.4 SDM AW Review - Conclusion | PentaxForums.com Reviews
Modern 50mm Shootout: Pentax D FA* 50mm, Samyang 50mm, Pentax DA* 55mm F1.4 Review - Introduction | PentaxForums.com Reviews
Forum: Pentax SLR Lens Discussion 10-25-2022, 05:44 AM  
Using M42 Lenses on Pentax Film Bodies, How?
Posted By Papa_Joe
Replies: 13
Views: 513
:lol: - Same issue with the histogram on my film bodys.


Just to add to Peters helpfull descripton: It is even easier with an Auto-Manual switch on the lens.

Use Av-mode. Set the lens to "Auto" which keeps the lens open. Select the desired f-stop. Make your composition and focus through the viewfinder. Switch the lens to "Manual". The lens will stop down, the camera will take an hopefully adequate metering and you can take the shot.
Look at the histogram afterwards and use the exposure compensation for the next shot if necessary.
Forum: Film SLRs and Compact Film Cameras 10-24-2022, 02:06 AM  
K1000 - What's the Appeal?
Posted By Papa_Joe
Replies: 66
Views: 2,185
I think this is the most reasonable explanation. People who want to start fast into analog photography and do not bother with the market.

And from this point the K1000 is a reasonable choice. There are plenty of excellent lenses on the market, which recommends Pentax instead of any other brand. The K1000 was built for a very long time, so there are is a lot of them available in good working condition. And they are most likely newer then a KX or KM.

Personally I agree with the postings here, that there are better all manual cameras from Pentax. As my first camera was a Chinon CE-4 I would even go one step further and recommend a Chinon CM-4s or a Cosina CT-1 with their reliable copal blind as a analog all manual beginners camera . Dirt cheap and high usability and with a bit of luck with intact light seals.
Forum: Digital Processing, Software, and Printing 10-19-2022, 01:30 AM  
Might be time for an AMD CPU upgrade. To 105W or not to 105W? That is the question.
Posted By Papa_Joe
Replies: 10
Views: 486
AFAIK RAW Therapy does not use the GPU for the RAW conversion. Thus a faster CPU, faster external storage (use a SSD while working on the files) and a good amount of RAM the options to speed up RAW Therapy. I might be wrong, but found nothing about GPU support in the internet.

If you want a RAW converter scaling with the GPU it is Affinity.
Forum: Troubleshooting and Beginner Help 10-13-2022, 11:52 PM  
My new K-70 has a slightly blueish color profile
Posted By Papa_Joe
Replies: 35
Views: 1,503
Hello Simone!

Personally I can not see a blue tint in the picture. Sure the sky is quite blue and the picture over all has a slight cold color temprature, but I think the main reason ist the image mode, the K-70 is set to. The factory setting is "Bright" which enhances the sky and has a bit more of contrast too I think. Switching to "Natural" might give you a more natural jpeg. There is a bit of white balance to the cool side probably too.

Learn more here about image modes: Give further expression with PENTAX "Custom Image" | RICOH IMAGING
Please note also the explanations "Minute parameter setting" on the web site which show you how to additionaly customize the image modes.
Forum: Digital Processing, Software, and Printing 10-06-2022, 01:48 AM  
SSD, stick, or card
Posted By Papa_Joe
Replies: 15
Views: 759
I second those who advice you to stay away from USB-Sticks and SD sards as a medium for storing important or valuable data.
Personally I lost the data from one USB Stick and at least 3 mini SD cards used in phones in the last 10 years. From my several HDD I have no failure in 30 years of usage. Some of them where in service for about 10 years. I do not have much experience with SSD drives, there is one in my self built small server, which does its job since about 10 years as well but with very view writing cycles as the data is on HDD.

As MossyRocks and Mark pointed out, however reliable your working system is, you need to have a backup strategy like the one MossyRocks described.
The most basic backup should be on two HDD used alternately where one is stored in another location.
And please remind, a backup drive is not connected to your computer. As long as your "backupdrive" is connected to it, there is the high chance, that the main risk (i.e. the user) for data security is accidentally erasing the backup.
Forum: Pentax SLR Lens Discussion 09-20-2022, 11:50 PM  
A possibly controversial opinion:
Posted By Papa_Joe
Replies: 37
Views: 2,815
Forum: Film SLRs and Compact Film Cameras 09-20-2022, 02:03 AM  
Pentax lx - worth keeping if light meter doesnt turn off?
Posted By Papa_Joe
Replies: 16
Views: 838
I would also suggest to get the issue adressed. The LX has no main switch, so I guess the meter is allways on. Right? In that case the batteries will be drained quite fast. Also I am not sure about the impact on the metering sensor if it is allways under current. Another possibility would be to only load batteries to the LX, when you are going to use it. But I do not think that a good idea, because the lid of the batterie compartment is not designed for frequent changes.

And I think the LX is worth that repair. Used LX in working condition (not regarding seals) will be sold from EUR 450,00 upwards here in Europe and I assume a repair adressing the issue would not be too expensive.
Forum: Pentax SLR Lens Discussion 09-09-2022, 12:13 AM  
A possibly controversial opinion:
Posted By Papa_Joe
Replies: 37
Views: 2,815
Nope. The 40mm f.2.8 ltd is IQ-wise one the best Pentax lenses you can put onto an APS-C camera. So no way to be waaaaaaay better.
I would like to know how you drew your conclusion.
Forum: Photographic Technique 09-07-2022, 04:57 AM  
The Golden Ratio: Is it misunderstood by many photography writers?
Posted By Papa_Joe
Replies: 55
Views: 2,653
First of all i have to thank Mark to bring up the topic, because it has brought me some insights I hope I can improve on.

What I have learned is:
- The golden ratio is about composition through proportion.
- It is about proportion of the main elements.
- It has nothing to do with placing your subject onto crossings or with having some element somewhere in a field of that spiral (makes me think of Bingo).
- Mathematical precision is not needed. The rule of thirds is close enough if you follow the mindset of the golden ratio.

Based on what I have learned, I would say the last picture in the original post is a near perfect realization of the golden ratio in a photography, while every other picture in this post has nothing to do with it.
Forum: Pentax SLR Lens Discussion 09-01-2022, 01:45 AM  
Lens for weddings indoor shots
Posted By Papa_Joe
Replies: 18
Views: 823
One of these: DA* 16-50mm vs. Sigma and Tamron 17-50mm F2.8 Comparison Review - The Bottom Line | PentaxForums.com Reviews

Myself being a happy Tamron 17-50/2.8 owner, I would go for another one. Although you have to make sure you get one in mint condition, as they do not head rough handling.
Forum: General Photography 08-30-2022, 01:00 AM  
Macro decision coming up, a question before I do it
Posted By Papa_Joe
Replies: 17
Views: 1,010
The reason why longer focal lenghtes in general are not recommended for portraits is, that with more distance to the person being photographed the face looks flatter and personal features get lost. If you take into account, that the classic portrait is usually at least a brest and shoulder or half piece the resulting focal length will be something between 70 - 100 mm on full frame. That in mind a 135 mm will give you a headshot from about the same distance.

Of course that is a general recommendation and I would not suggest anyone to stick to that. I am shure you can take a good portrait with any lens.
As your impressive selection shows. Very nice pictures!

Then I have to admit there is a personal bias as well. I should have made that more clear in my statement. I prefer to shoot half person portaits or head and shoulder with lenses up to 50 mm (on APS-C). I allready feel unconfortable when I use my 70 mm for those.
Forum: General Photography 08-29-2022, 01:42 AM  
Macro decision coming up, a question before I do it
Posted By Papa_Joe
Replies: 17
Views: 1,010
As tryphon4 allready has stated in macro phtography depth of field is not dependent on the focal length used, thus you can rule it out as a criteria.

More important is what for you need the macro abiltiy. As you used a Pentax A zoom lens you probably never got more than 1:4 ratio, that is what the so called zoom lenses had in the times then. If you are looking for a modern auto focus replacement for the occasional close up the 55-300 PLM might be a choice for you or the Tamron 70-200/2.8, which both give you about 1:3 ratio.

A true macro lens will have at least 1:2 ratio and AFAIK all the modern AF lenses have 1:1. If you are going to ratios around 1:2 and further up to 1:1 the distance between the front lens and the subject is the critical issue. Then you will be happy for every other mm of focal length. This is true for every object be it a ladybug in the field or a coin on the repro stand. For those ratios I would thus allways recommend a longer focal length, at least 90 mm.

However if you have a repro stand and are going to take duplicates of medium format slides 35 mm will be handy because at those ratios of about 2:1 the column is to short for a 100 mm.

Then there is the question of the secondary or main use. For portrait 100 mm on APS-C is a bit on the long side for example. And I really do not know, what I would do with a 35mm/2.8 on APS-C?

I myself own a 70 mm/2.8 macro from Sigma which gives a very nice portrait lens on APS-C and the more on full format, but which is on the short side for higher macro ratios. It is very nice for butterflys, but taking pictures of a ladybug will result in shadows from the lens not to be avoided.
Forum: Pentax DSLR Discussion 08-26-2022, 01:51 AM  
Pentax K-X & Newer Lenses
Posted By Papa_Joe
Replies: 4
Views: 667
For more details on the various K-mount variants read this article: The Evolution of the Pentax K-mount - Articles and Tips | PentaxForums.com

The KAF4 mount is supported by the Pentax K-70, K-50, K-S2, K-S1, K-1 (both), K-3, K-3 II, KP and K-3 III. Some of them needing a firmware update.
The Lens compability checker linked by Fogel will give you more details.
Forum: Pentax K-70 & KF 08-24-2022, 01:31 AM  
Please Help Me Choose
Posted By Papa_Joe
Replies: 81
Views: 3,785
Hello Dinah, as I went from a K-10D to a K-70 in 2019 I would like to share some topic, that stayed in my mind from this and might help you in your decision.
For your information, I also own a K-1 (first issue) since half a year and I do not own the K-3iii.

First of all, the K-70 is a very capable camera and my trusted workhorse nowadays. Second, image quality should be no concern in your decision. Coming from the K-10D, there is really not a big difference between those cameras mentioned in this thread (K-3iii, KP, K-70). Third I do not think weight should be your concern. The K-10D is between the K-70 and the K-3iii and the difference between those is about 100 gr..

I did struggle with the handling of the K-70 for over a year, it is much more menu depend, then that of the K-10D and the K-70 misses some buttons compared with the K-10D. My K-1 is closer to the K-3iii in handling and it is much more fun, although I now know my K-70 by heart and have to search for the functions in my K-1. That said, the K-10D is a much simpler camera than even the K-70 and either you choose it or the K-3iii you will feel going from a Volkswagen Beetle to a lunar rocket. But I would say the basic handling will be better on the K-3iii with more knobs (not knowing it, it is a guess based on my K-1).

The K-3iii lacks the articulated screen of the K-70, which is very handy for working near the ground. As you are doing macros, this might be the crucial issue for you.

I am quite happy with the autofocus of the K-70, its accuracy is excellent even under low light. But if I would buy the K-3iii (I won't, I have enough DSLR), then for it's autofocus system. Not only for its speed and accuracy on moving subjects, but for its coverage of the frame. The first Pentax DSLR with autofocus points at the edge of the viewfinder! Then, do not forget it has eye detection which will help you in people photography a lot.

As you are allready content with spending the money for the K-3iii I would be inclined to recommend you the K-3iii. It is just the newer and better camera.

There is an if in that recommendation. And that is, if you own appropriate lenses. It is a huge step in image quality from the K-10D to either the K-70 or K-3iii and to get that image quality out of those, you need the lenses to let them shine. So as an extreme example, if your standard lens is the 18-55 now and you can not afford buying the K-3iii and some lens like the 16-85, I would very very strongly recommend you to buy the K-70 and the 16-85 (or a more expensive).
So would you please let us know which lenses you own to give you some more things to ponder on :)?

A Comparison of the cameras you will find here:
https://www.pentaxforums.com/forums/pentax-cameras-compared/?c1=Pentax+K-3+I...c3=Pentax+K10D
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