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Forum: Pentax News and Rumors 06-02-2018, 09:23 PM  
D-FA* 85mm f1.4 also coming
Posted By jatrax
Replies: 1,532
Views: 129,077
Yep. My bag is full. If RIcoh shows me a better choice for one of the slots in that bag I might buy. But budget wise I cannot afford more than one new lens per year. So that rate is just fine with me. :)
Forum: Pentax News and Rumors 06-02-2018, 07:28 AM  
D-FA* 85mm f1.4 also coming
Posted By jatrax
Replies: 1,532
Views: 129,077
When I started I bought a lot of old lenses to try. I have a nice set of Takumars. But when I started getting serious I started replacing lenses with more modern ones. I do not really have any missing slots in my lens bag but over time I will replace something with something better. If it is available. An example would be the DA*60-250, the new 70-200 f/4 might be a replacement for it at some point. But for now the 60-250 holds that slot and the 70-200 will need to be clearly better.
I just replaced my FA 20-35 with the DFA 15-30. That was a hard decision because of the cost and the huge extra weight. But it has worked out and I'm delighted with the 15-30.
But for Ricoh to sell me much of anything new they will need to deliver a lens that clearly is superior to what is already in my bag at a cost I can afford after selling what I am replacing.
Forum: Pentax News and Rumors 06-01-2018, 07:22 PM  
D-FA* 85mm f1.4 also coming
Posted By jatrax
Replies: 1,532
Views: 129,077
DFA is the future obviously. I assume all of those posters who wanted a camera to use their old lenses the way they were meant to be used have bought at least one K-1 and are now happy. The DFA lenses are for the rest of us. :):)
Forum: Pentax SLR Lens Discussion 06-01-2018, 07:13 PM  
Night photo/Astrotracer best lens advice
Posted By jatrax
Replies: 17
Views: 812
You might want to look through the information in this thread: Want to try Astrophotography - PentaxForums.com


ON the K-1 I use the DFA 15-30, (in it's Tamron iteration it is in the top 5 or so lenses for Astro. Also highly recommended is the Samyang 24mm f/1.4 and the Samyang 14mm.


More info:
Lonely Speck’s Ultimate List of Best Astrophotography Lenses – Lonely Speck


You want wide and fast and minimal aberrations. I would just use your 16-50 @ f/2.8 to give it a try. ISO at 3200 or 6400 to start then reduce as best you can depending on the time you can get out of the Astrotracer.
Forum: Troubleshooting and Beginner Help 06-01-2018, 05:36 PM  
Legacy lens won't attach to my K-70
Posted By jatrax
Replies: 15
Views: 780
In some cases, with a particularly rare or valuable lens this might make sense. Since it is neither and there are thousands of actual K-mount lenses available that will actually work just send it back. It really is not worth the trouble.


Sorry you had a bad experience with your first vintage lens. But hopefully lessons learned:
1) Not all sellers have any clue what they are selling and may not describe things accurately. Look at the pictures carefully.
2) There are many different camera mounts, only K-mount and M42 are worth the bother for Pentax DSLRs unless you really, really know what you are doing
3) Never trust anyone on Ebay. Or maybe "trust but verify" is a good rule :)
4) Maybe not a lesson but may I suggest you start with genuine Pentax lenses first and move to other third party ones only after you have some experience.
Forum: Digital Processing, Software, and Printing 05-31-2018, 06:06 PM  
Introducing a RawTherapee stage during Photoshop Layering for Super Resolution?
Posted By jatrax
Replies: 3
Views: 460
No help here. But I am curious what you shoot that requires / benefits from all of the extra preparation.
Forum: Pentax SLR Lens Discussion 05-31-2018, 02:29 PM  
Samyang 85/1.4 Focus Past Infinity?
Posted By jatrax
Replies: 14
Views: 474
More common than not really. I have only a very few lenses that are actually at infinity at the infinity mark. Pentax A 20mm f/2.8 and Pentax A 24mm f/2.8 are both on that list.
Forum: Pentax DSLR Discussion 05-31-2018, 02:26 PM  
What price can I expect the KP to go down to once discounts start hitting?
Posted By jatrax
Replies: 18
Views: 1,092
Ricoh seems to have done a fairly good job of inventory management recently. I do not remember there being any sudden 'fire sales' on old models when new ones came out. In fact the opposite in some cases, prices actually went up once availability got scarce.


Nikon / Canon play the "dump the old model" game but Ricoh seems to not be interested in that. I suspect there is just as much chance of KP inventory going to zero as there is of the price dropping to your point. If the current $900us is above your budget you might look for a good used one that would likely be in your range.
Forum: Pentax SLR Lens Discussion 05-31-2018, 10:37 AM  
ND Filter users
Posted By jatrax
Replies: 6
Views: 535
Terry, I use both threaded and 100x150mm filters. Nothing I have uses a gasket so I am really not sure what you are looking at. Can you post a link to the ones with the gasket?
Forum: Pentax SLR Lens Discussion 05-30-2018, 06:13 PM  
ND Filter users
Posted By jatrax
Replies: 6
Views: 535
OP: are you using solid NDs or ND grads? If filter threads are available that is the preferred method for solid NDs. If you are using ND grads then look at this holder: X100 Holder ? Breakthrough Photography


ND grads are not as bothered by light leaks but for solids the simplest way is to just use screw on filters. IMHO.
Forum: Pentax SLR Lens Discussion 05-30-2018, 05:10 PM  
ND Filter users
Posted By jatrax
Replies: 6
Views: 535
Does the Irix take a threaded holder? What threads?
Forum: Visitors' Center 05-30-2018, 02:29 PM  
K-20 need a compatible zoom for landscapes
Posted By jatrax
Replies: 12
Views: 675
You have the K20D? If so it is an APS-C camera so any of the F, FA, DA, or DFA lenses would work.


If you need wider then the DA 16-85 would be a good choice. More expensive but faster is the DA*16-50. Another option would be the DA 18-135. For ultra-wide the DA 12-24 f/4 is a good choice.


Have a look at the lens database here: Pentax Lenses - Pentax Lens Reviews & Lens Database


Compatibility is not an issue. All Pentax branded lenses made will work with your camera. You might want to refine your criteria a bit though as there are dozens of lenses that fit the term "zoom for landscape".
Forum: Pentax SLR Lens Discussion 05-30-2018, 09:26 AM  
"Optics Separation" is common with Pentax 50mm f/1.2 lens
Posted By jatrax
Replies: 24
Views: 3,409
That is correct.

That is sad if true. His work with re-anodizing lenses was truly amazing.
Forum: Digital Processing, Software, and Printing 05-29-2018, 07:16 PM  
Desk top pc for Lightroom classic
Posted By jatrax
Replies: 6
Views: 492
These are good points and should be considered when buying a graphics card. Neither is important to me so I generally ignore the GPU but that is just my use case. Also, Adobe has committed to improving the use of the GPU in Lightroom, though how long that will take is anyone's guess.
Forum: Pentax SLR Lens Discussion 05-29-2018, 03:16 PM  
"Optics Separation" is common with Pentax 50mm f/1.2 lens
Posted By jatrax
Replies: 24
Views: 3,409
He has repaired a number of lenses for me. 4 or 5 maybe.. Including one with lens separation. I have been pleased with his work. I do not know anything about him being booked up but I know he is retired so he may only take so much work.

I think @DCshooter does similar work but you would need to ask him.


There is also Advance Camera in Portland Oregon
Forum: Digital Processing, Software, and Printing 05-29-2018, 02:47 PM  
Desk top pc for Lightroom classic
Posted By jatrax
Replies: 6
Views: 492
1) Lightroom likes fast processors. Period. i7 at 4ghz is good or anything in that ball park. This is the most important component, little else makes a significant difference unless you really cheap out on components.

2) SSD for operating system, programs and Lightroom catalog. Regular 7200rpm hard drive for image storage
3) 16gb memory minimum, 32gb if you also have other stuff like photoshop open
4) Graphic card is not currently used much by Lightroom but that is changing. Get a decent one but don't waste money on anything high end


These guys actually do benchmarks on Lightroom and build PC's based on that: Recommended Hardware for Adobe Lightroom Classic CC - Puget Systems



Brand makes little difference these days, just make sure you know what is under the hood.
Forum: Pentax SLR Lens Discussion 05-28-2018, 06:55 PM  
Are my lenses normal?
Posted By jatrax
Replies: 8
Views: 704
Neither of those lenses are noted to be particularly sharp on the edges. To pixel peepers, anyway. They have other attributes that they excel at.



The images look as good as my experience with those lenses would indicate. I see nothing wrong with them.
Forum: Digital Processing, Software, and Printing 05-25-2018, 07:10 AM  
I need some tutoring!
Posted By jatrax
Replies: 5
Views: 637
@Dewman if you have specific questions feel free to PM me. We could set up a phone call some evening if that would help. My version is much newer than yours now but I used v6 for several years and most of the menus are still the same.
Forum: Pentax K-1 05-25-2018, 07:03 AM  
Will it brick my K-1 if I apply K-1 Mark II firmware upgrade to it?
Posted By jatrax
Replies: 21
Views: 1,333
Most unlikely that Ricoh would allow that to happen. But let us know what happens. :)


I would expect the camera to check the firmware and refuse to install it unless it is for the correct model. That is the way it has always been.


And I'm not sure it would do you any good anyway, I believe any new "algorithms" would be using the accelerator chip in the MK II, which is not present in the MK I. Just my thoughts, and until someone is brave enough to try I do not think anyone can actually say for sure.
Forum: Troubleshooting and Beginner Help 05-24-2018, 12:37 PM  
Pentax “red dot” lenses
Posted By jatrax
Replies: 9
Views: 696
"red dot" is not a type of lens. It is just the mark on camera and all K-mount lenses that help with alignment.

When buying your lens use caution as some sellers do not understand the distinction between F/1.2 and f/2. You will often find f/2 lenses listed as f/1.2 either in error or by deliberate deception. The 50mm f/1.2 runs around $500 the f/2 usually less than $50 in excellent condition.
Forum: Pentax K-3 05-24-2018, 09:56 AM  
The K-3 line will continue!
Posted By jatrax
Replies: 619
Views: 51,491
+10. No possible new gear will improve anyone's photography as much as using the time wasted here whining about new gear to actually practice photography.
Forum: Digital Processing, Software, and Printing 05-24-2018, 08:46 AM  
Lightroom develop presets to bring back old Pentax digital colors?
Posted By jatrax
Replies: 10
Views: 496
Forum: Pentax SLR Lens Discussion 05-24-2018, 08:44 AM  
Please, don't let me buy the DFA 15-30...
Posted By jatrax
Replies: 26
Views: 1,215
If your choice is one or the other then the 24-70 has to be my choice. Or for travel the 28-105 but if you like wide then perhaps the 28-105 will not work for you. I just do not think the 15-30 is versatile enough to be a good travel lens.


I used the 24-70 paired with the FA 20-35 for almost two years and was fine with that combination. A recent interest in astrophotography motivated me to sell the 20-35 and buy the 15-30. I have only two trips with it so far but I am very impressed. The lack of filters might be an issue for some but I did not find it so. If I needed filters I used the 24-70.
Forum: Pentax News and Rumors 05-23-2018, 03:51 PM  
Development update regarding the HD PENTAX-D FA★50mmF1.4 SDM AW
Posted By jatrax
Replies: 355
Views: 23,766
Appreciate your opinion. :)
Forum: Pentax News and Rumors 05-23-2018, 10:06 AM  
Development update regarding the HD PENTAX-D FA★50mmF1.4 SDM AW
Posted By jatrax
Replies: 355
Views: 23,766
I'm sure lots of people would disagree with that statement. :) But if they do not work for you at least we now have lenses with motors.


And sorry about your 15-30. I hesitated a long time before buying it, mostly because of the weight. But after two trips with it I am absolutely delighted. Sharp, fast and accurate. But it sure is heavy................
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