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Forum: Travel, Events, and Groups 1 Day Ago  
Kiwi Pentaxians
Posted By Class A
Replies: 17,023
Views: 1,184,913
What is the app about?

If precise focal length numbers are important then you could allow for a few outliers between bigger steps.
Forum: General Photography 2 Days Ago  
Considering a 43" 4k TV as a monitor
Posted By Class A
Replies: 14
Views: 905
Indeed.

You'd have to make sure that you can turn off any typical enhancements such as black level or contrast adjustments.
You should also check whether the monitor can be made to track a typical photo editing gamma, such as sRGB gamma.

You can always calibrate a monitor but if its out of the box performance is off you'll either never get an optimal result or lose many tonal values in the process.

I have a 42" Sony TV set which measured extremely well with all the fancy enhancements turned off, so I'd say it is definitely possible to get a very suitable model. Viewing angles should normally not be a problem but since you'll use closer than normal viewing distances, it is worth checking that the model supports the respective viewing angles without changing contrast or even colours.
Forum: Travel, Events, and Groups 3 Days Ago  
Kiwi Pentaxians
Posted By Class A
Replies: 17,023
Views: 1,184,913
Unfortunately, I don't know, except that you wouldn't hit the Pentax 560/5.6. Also, have you checked the forum's lens database?

Coincidentally, I was going to share the fact that Photo & Video have a Pentax 1000mm f11 mirror lens. Perhaps someone is interested? It definitely represents a case where the focal length exceeds 600mm. :)
Forum: Pentax K-1 4 Days Ago  
Pentax K1 or Canon R5
Posted By Class A
Replies: 27
Views: 1,305
From your description, it seems that you'll enjoy a K-1 a lot more than the Canon R5.

As @noelpolar, I wonder though, why the Canon 5D Mark IV does not appear to serve your needs.

In terms of weather-sealing, it should also be OK (not sure about the lenses).

The K-1 has inconsequentially more megapixels but its PixelShift feature may be of interest to you. You'd need to use appropriate software (like RawTherapee) to make full use of it, though.

The K-1's composition adjustment feature may also be useful at times, but personally I'd rather move the tripod.

You mentioned "astro" in your second post; of course the K-1's unique astrotracer feature could be a plus then.

Regarding the K-1 II's improved AF: It is only slightly improved with respect to tracking (AF-C). With landscapes and other still subjects, you shouldn't have any trouble with the K-1.
Forum: Flashes, Lighting, and Studio 4 Days Ago  
Xpro-P TTL Wireless Flash Trigger for Pentax
Posted By Class A
Replies: 290
Views: 32,967
Unfortunately, the second-curtain sync setting on the camera does not change how the radio trigger (or for that matter, most flashes) operates.

Some cameras, like the K-1, don't even have respective flash settings.
The K-5 II has two second-curtain sync related flash settings but I just confirmed that they don't enable second-curtain sync with the XPro-P.

Unfortunately, Pentax has associated second-sync functionality with the flash. They could have associated it with the camera which would enable us to use any old flash or trigger to accomplish second-curtain sync, but they didn't. It's anybody's guess as to why that decision was made.
Forum: Pentax News and Rumors 08-02-2020, 04:09 PM  
Product Stories of New APS-C
Posted By Class A
Replies: 64
Views: 8,963
Early images of the mirror box indicated a very wide AF module. It would be a big surprise if the K-new didn't offer better than usual AF frame coverage.
Forum: Flashes, Lighting, and Studio 08-01-2020, 01:07 PM  
Xpro-P TTL Wireless Flash Trigger for Pentax
Posted By Class A
Replies: 290
Views: 32,967
They should correct it then because it simply isn't possible to select second-curtain sync on the XPro-P.

I own the device and I think its inability to select second-curtain sync trumps what the text states. :)
Forum: Pentax News and Rumors 08-01-2020, 07:12 AM  
R03010 = K-new was registered by FCC on 27 July 2020
Posted By Class A
Replies: 157
Views: 15,368
I don't either.

However, it would be nice to be able to send high-resolution JPEGs to a PC or tablet in order to check critical sharpness.
Forum: Flashes, Lighting, and Studio 08-01-2020, 04:07 AM  
Xpro-P TTL Wireless Flash Trigger for Pentax
Posted By Class A
Replies: 290
Views: 32,967
The AD300 will give you less than .6 stops more light.

I'd consider the AD400 which would also give you a bit more straightforward access to Bowens mount light modifiers. However, if portability is a priority for you and the modest amount of extra power the AD300 offers is sufficient for your purposes then of course the AD300 is probably the better choice.
Forum: Pentax News and Rumors 08-01-2020, 03:56 AM  
R03010 = K-new was registered by FCC on 27 July 2020
Posted By Class A
Replies: 157
Views: 15,368
You've made very good rational points about Bluetooth but this seems like fighting a straw man.

Who are these people that "obsess" over "unbaked RAWs" and "faster wireless data transfer"?
I can't say I've ever seen anyone arguing for faster WiFi in order to have their unbaked RAW files to be transmitted more quickly.

I think it is perfectly fine to ask for faster WiFi transfer for the purposes of transmitting a better quality Live View image or decreased transmission times for full resolution JPGs in order to check focus.

I furthermore think it is unjustified to implicitly suggest that Pentax WiFi transfer speeds couldn't be improved significantly by a combination of different hardware choices and improved software.
Forum: Flashes, Lighting, and Studio 07-31-2020, 09:16 AM  
Xpro-P TTL Wireless Flash Trigger for Pentax
Posted By Class A
Replies: 290
Views: 32,967
That's because Godox don't offer a Pentax-dedicated version of their X1R receivers while the Cactus V6II is multi-brand compatible.
Of course Godox could in principle also offer a firmware update for the AD360II but maybe it is considered too old a model to support or it doesn't have the hardware to feature a larger firmware version.

Overall, I'm glad that Godox/Flashpoint offer Pentax support, despite a few limitations. Other options aren't that attractive if one wants more power than a Cactus RF60x can deliver. One can achieve quite a bit with a pair of Cactus RF60x on a bracket, but then already the AD200 is even more powerful and does it in one package and one battery (instead of eight), plus offers the bare-bulb vs Fresnel vs round head options.


Have you considered the Flashpoint R2 Pro Mark II?
It is 100% compatible but has the best usability/functionality of all three triggers.
It is a bit bulkier than the X2T-P though and angles slightly up which you may not like.
Forum: Photographic Industry and Professionals 07-31-2020, 09:02 AM  
Pentax said in video it would use new gen apsc sensor
Posted By Class A
Replies: 119
Views: 8,695
It does in the sense that with the "tiny display" camera one is essentially forced to adopt OSPDAF (on-sensor PDAF) unless one wants to end up with Panasonic-style DFD focusing.

The "big display" camera, on the other hand, may make use of sensors that are not marred by the striping and banding that can be caused by certain OSPDAF technologies. In particular Sony sensors suffer from OSPDAF-induced artefacts, so I'm hoping Ricoh will not try to compete with MILCs with respect to LiveView AF. In my view they should, like Panasonic, prioritise the integrity of the image data, and live with slower LiveView AF, but still benefit from excellent PDAF (when the optical viewfinder is used).
Forum: Photographic Industry and Professionals 07-31-2020, 08:52 AM  
Pentax said in video it would use new gen apsc sensor
Posted By Class A
Replies: 119
Views: 8,695
That is correct. The image processing also involves colour correction and sharpening.

The common theme to all "corrections" are that they are post-processing techniques.
Even Ricoh refer to them as "image-processing".

Hence, the "noise suppression" achieved is better characterised as "denoising" (achieved after the fact) and should not be confused with actual "noise reduction" (achieved in the sensor).

The Sony sensor is a black box that uses several techniques to achieve actual "noise reduction". What the Pentax engineers get to work with is a digital output stream. They can then massage the latter with image-processing techniques to make the image look better.

With a pure approach, the data coming out of the sensor would be stored as the RAW data in order to give users the option to either apply the Pentax-proprietary image-processing (in something like the adapted SILKYPIX), or use some other techniques, potentially better ones in the future.

No matter the magic sauce applied by Ricoh with the "accelerator unit" it could be just as well applied outside the camera.
Applying it inside helps with the perception of a better camera though. I'm assuming that's the reason why the processing won't become optional (again), even though the latter would result in a win-win. I hope Ricoh will prove me wrong!

Again, for those who like the image-processing (<- not my choice of words, Ricoh's choice of words), enjoy!

Just wanting to clarify that one must not expect significantly better results through improved sensor technology. As @beholder3 put it:

BSI, dual-gain, and stacked-sensors were the recent sensor technology advances and we won't see anything beyond that in the K-new.

Unless the K-new uses a dual-gain BSI sensor, improvements over the KP will come from the image-processing.
It is a judgement call as to whether one should, in this case, declare "improvements".
Some will see it like that, some won't.
Forum: Pentax News and Rumors 07-31-2020, 08:10 AM  
R03010 = K-new was registered by FCC on 27 July 2020
Posted By Class A
Replies: 157
Views: 15,368
The 802.11ac standard is about eight years old.

I don't think it is a sign of impatience if one expects standards that old to be implemented. The WiFi transfer speeds are woefully slow and essentially turn the associated apps into glorified remote controllers. I really appreciate the functionality that already exists, but wouldn't it be nice if one could transfer image files more quickly?

Perhaps the ultimate cause for the slow transfer speeds have been other hardware components, in which case the K-new could be faster than existing models.
Forum: Pentax News and Rumors 07-31-2020, 06:03 AM  
R03010 = K-new was registered by FCC on 27 July 2020
Posted By Class A
Replies: 157
Views: 15,368
:(

Oh well, perhaps the FF-new (I hope there is such a thing).
Forum: Pentax News and Rumors 07-31-2020, 05:35 AM  
Product Stories of New APS-C
Posted By Class A
Replies: 64
Views: 8,963
Depends on the assumed reference.

The new APS-C camera will show the standard APS-C crop in the viewfinder but with a larger apparent size (compared to standard APS-C viewfinders). This means your eye has a larger viewing angle to cover.
Forum: Pentax News and Rumors 07-31-2020, 03:37 AM  
Product Stories of New APS-C
Posted By Class A
Replies: 64
Views: 8,963
Pentax are releasing a series of articles about the development and production of the new Pentax APS-C Flagship Camera.

In Vol. 1 Shigeru Wakashiro, who is in charge of the planning and development of new Pentax DSLRs, focuses on the design process behind the new pentaprism.

Forum: Flashes, Lighting, and Studio 07-30-2020, 07:27 PM  
Xpro-P TTL Wireless Flash Trigger for Pentax
Posted By Class A
Replies: 290
Views: 32,967
No.


The HSS-capable triggers are the Xpro-P, the X2T-P, and the (Flashpoint only) R2 Pro MarkII (for Pentax).


I don't see any reason why these wouldn't work with a 645D.
Forum: Flashes, Lighting, and Studio 07-25-2020, 12:11 PM  
High Speed Sync with a Metz Flash
Posted By Class A
Replies: 5
Views: 411
Have you tried M or Tv mode?

Are you sure the flash goes into HSS mode? You'd see a pre-flash even if it is just in P-TTL mode (i.e., is not in HSS mode). The flash has to be in "P-TTL HSS" mode, at least that's what the mode is displayed as on a Metz 58 AF-2.

IIRC, it can matter whether the flash head points exactly forward, i.e., neither up a notch or in a slightly tilted down position. I think only if it points directly forward you can activate P-TTL (but you seemed to have gotten so far already).

The ordering of steps can be important. Try getting the flash into P-TTL mode (camera may need to be on for that). Then turn the camera off (if it had to be on before). Turn the camera on. Now try whether a "P-TTL HSS" option becomes available on the flash. Sorry if that doesn't make sense for your flash model, it does for the Metz 58 AF-2.
Forum: Flashes, Lighting, and Studio 07-25-2020, 11:56 AM  
High Speed Sync with a Metz Flash
Posted By Class A
Replies: 5
Views: 411
The point of HSS is that one is no longer limited by the sync-speed.


In PowerSync mode (which is not HSS), the Cactus V6II will always drive a flash at full power. If it didn't one would get black bands. The loss of power control is compensated by a) increased power output, and b) the ability to shoot at higher shutter speeds, even without an HSS-capable flash.
Forum: Pentax News and Rumors 07-24-2020, 03:34 AM  
Meet the new flagship
Posted By Class A
Replies: 765
Views: 68,508
The K-new has been announced as applying image-processing at ISO 100 already.
It may mean nothing, though, if it is optional.


Who has been "complaining" for years?

I was initially 100% neutral.
Then I only suggested that not everyone will love a mandatory "accelerator unit"; I said that I would even use it myself sometimes.
Next, I provided arguments against the position that there is "nothing not to like". While it may be true that under many circumstances other effects will be stronger, it is undeniable that the "accelerator unit" has an effect that some find positive and others find detrimental, at least in some applications.

In all this, my intention is to hope for the best for Pentax.
Do I personally care what DPReview thinks about a Pentax camera? Not in the slightest.
Do I care if Pentax unnecessarily loses customers whether they make up their own mind against RAW baking or whether a sensationalizing article makes them turn their back? Yes, I do.
Is it necessary to lose some to win more?
It absolutely is not.

In summary, I'm someone who wants the best for Pentax and wants everyone to be happy with their choice, whether they are an "accelerator unit" lover or hater.

The result: I get comments mentioning "bordering obsession" and "years of complaining".
What is so difficult about letting someone else's view stand without attacking them?


Why bring it up then, again? I suggested to let it rest for the thread, but because it is getting too much exposure, it needs to be addressed again? In this thread?

I'm out.
Forum: Pentax News and Rumors 07-24-2020, 12:19 AM  
Meet the new flagship
Posted By Class A
Replies: 765
Views: 68,508
I suggest that we no longer discuss the "accelerator unit" in this thread. I only responded to some who quoted me in an attempt to avoid misunderstanding and/or to clarify earlier comments.

Let's agree to disagree, and if that's not possible, someone who wants to continue with the topic should start a dedicated thread.

I think this thread should be about sharing enthusiasm for the new APS-C flagship. No one knows whether the "accelerator unit" will be optional or not, so the topic shouldn't really be in this thread. I'm not normally fuzzed about "off-topic" side discussions but this one has the potential of derailing a thread so why not drop it here?

All the best.
Forum: Pentax News and Rumors 07-23-2020, 11:57 PM  
Meet the new flagship
Posted By Class A
Replies: 765
Views: 68,508
Again, credentials don't matter. Facts do.

K-1 II images have been subjected to a 2D Fourier analysis which shows the attenuation of spatial high frequencies (read "loss of fine detail", which is inevitable when denoising is performed). You can use ImageJ for that, if you want to replicate the result.


That's cool. I don't see anyone wanting to take that away from you.

However, others wouldn't replicate the built-in noise reduction; for instance, they would only apply it to some parts of the image, but not to other parts.


Same here.

When I look at the comparison done by pentaxforums.com my own eyes tell me they prefer the K-1 images. Note that they write
"...fine edge details are slightly clearer in the K-1's more noisy file, and perhaps the shadows have a hint more detail."
Why shouldn't have everyone the choice over details vs lower noise levels? It is also clear that for image processing as applied in astrophotography (deep image stacks) it is better to work with unadulterated noisy images than using pre-denoised images.
Forum: Pentax News and Rumors 07-23-2020, 11:32 PM  
Meet the new flagship
Posted By Class A
Replies: 765
Views: 68,508
To the best of my knowledge no Pentax engineer ever suggested something remotely along these lines.

Note that it is already "turned off" below ISO 640 in the K-1 II and that the reason the chip which performs the "denoising" (which is not "noise reduction") is called an "accelerator unit" is because it is an image processor that speeds up computation which would otherwise be done by the main image engine. We are not talking about sensor-related noise reduction that is difficult or impossible to remove from the processing chain. This is an image-processing step, that could be omitted, if desired. In the latest video, Pentax themselves call it "image-processing", not "sensor noise reduction" or similar.

Again, I'm cool with anyone who likes the "accelerator unit". All I'm asking for is for everyone to acknowledge that other people may have different preferences.
Forum: Pentax News and Rumors 07-23-2020, 11:26 PM  
Meet the new flagship
Posted By Class A
Replies: 765
Views: 68,508
I wish "we" included everyone posting to this thread. :)


You don't need to convince me that DPReview does not apply the same standards when or when not to take umbrage at something. :)

Personally, I couldn't care less what other cameras do with respect to RAW baking. They may or may not do it, it does not concern me, as I'm not using them.


Well, just because the intention is good, doesn't mean nobody should ever be bothered by the side effects.
If it were only "on by default" we wouldn't have this conversation; a problem only exists if it is "always on".


This must be a misunderstanding.

When I initially reported about the "accelerator unit", I was 100% neutral and only said "There is a new "accelerator unit" as well. Some will like that, some won't. No words on whether its use will be optional this time."

Only after it was suggested that an "accelerator unit" isn't problematic anyhow, I wrote "I really don't mind if people love the "accelerator unit" and may use it myself for some applications." and then pointed out that everyone would win, if it could be made optional.

I don't see how that equates to prematurely complaining "about the evil Pentax RAW".
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