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Forum: Pentax Full Frame 07-03-2019, 01:17 AM  
Switched to FF, which lenses to change?
Posted By Tranzistors
Replies: 38
Views: 3,306
Wouldn't the 24–70 + 100mm macro negate the need for 28–105? With such kit the only niche that the 28–105 would fill would be a single walk-around lens.
Forum: Photo Critique 04-01-2019, 05:10 AM  
Abstract CD with water drops
Posted By Tranzistors
Replies: 18
Views: 1,451
I feel that for an abstract shot the scene is too recognisable. The centre of the image is visibly a plain old CD. If you have a macro lens or an extension tube, try getting closer.

Another good thing about getting closer is that composing the image becomes easier. Currently you have about 40 droplets in in the image, mostly random and 2 of them are not in a conventional droplet shape. If your image has 4-8 visible droplets, it's easier to arrearage them in a composition.
Forum: Winners' Showcase 02-09-2019, 12:05 PM  
January, 2019 Runner-op: Canola Fields
Posted By Tranzistors
Replies: 38
Views: 1,532
I would like to nominate this photo
Forum: Monthly Photo Contests 02-09-2019, 12:04 PM  
Gamut Stand Up
Posted By Tranzistors
Replies: 12
Views: 269
I would like to nominate this photo
Forum: Monthly Photo Contests 02-09-2019, 12:04 PM  
London eye and the nearby building
Posted By Tranzistors
Replies: 11
Views: 236
I would like to nominate this photo
Forum: Monthly Photo Contests 02-09-2019, 12:04 PM  
Beach Ready
Posted By Tranzistors
Replies: 4
Views: 229
I would like to nominate this photo
Forum: Winners' Showcase 02-09-2019, 12:04 PM  
January, 2019 Winner: Snowy Dunes and the Henry Mountains
Posted By Tranzistors
Replies: 49
Views: 1,634
I would like to nominate this photo
Forum: Monthly Photo Contests 02-09-2019, 12:03 PM  
Tibetan Prayer Flags - Yunnan
Posted By Tranzistors
Replies: 19
Views: 431
I would like to nominate this photo
Forum: Photo Critique 01-05-2019, 01:30 PM  
Landscape Is this good or meh?
Posted By Tranzistors
Replies: 15
Views: 1,469
Just showed it to my wife and the reaction was “Wow, nice!”. The reflections are what is noticeable right away and that makes the wow moment. After the initial impression you can start to see all the imperfections of the image, so you are right to suspect it's not going to win any prizes. I personally would prefer less of clouds, out-of-focus branches and ground (could be solved by moving 3 meters closer), higher contrast and darker image would make a more dramatic impression, but my wife said that the darker picture looked more like Mordor with molten metal, so perhaps not. Super ideally you would have some well lit subject on the ice to complete the composition, but that would be a truly unrealistic expectation.
Forum: Pentax Full Frame 11-24-2018, 12:23 PM  
are you happy with switching to FF?
Posted By Tranzistors
Replies: 335
Views: 27,833
To those who don't want to search the comment: I've got Moire - Page 2 - PentaxForums.com
Forum: Pentax Full Frame 11-15-2018, 08:37 AM  
are you happy with switching to FF?
Posted By Tranzistors
Replies: 335
Views: 27,833
Yes, macro photography is a special case, where smaller sensor is a direct benefit for extra close up. I think this conversation can be summarised to “Ask your doctor, if full frame is right for you”.
Forum: Pentax Full Frame 11-15-2018, 07:36 AM  
are you happy with switching to FF?
Posted By Tranzistors
Replies: 335
Views: 27,833
I think you have misinterpreted me. When I talk about resolution drop off, I don't mean that the sensor is to blame, but rather the sensor-lens combo. If you have a razor sharp D-FA 50mm at f/2, moving from 16 to 24 MP on APS-C will probably give you about 33% more detail. However, if you have a pinhole camera, those extra megapixels on the same surface won't give you much more detail, but increased surface will.

That is to say, if a lens is not super sharp, but is about as sharp in the centre as it is in the corners, you can get more details out of a picture by moving from APS-C to FF and keeping pixel density, rather than increasing megapixels on the APS-C. However, that if is a big if. Lenses tend to be noticeably sharper in the centre. I have not seen any studies of FF Pentax lenses in this regard. It is perfectly possible that for a same FF lens K-3 will give more detail than K-1, I just suspect that 35mm f/2.4 and 100mm f/2.8 macro will give more detail on K-1.
Forum: Pentax Full Frame 11-14-2018, 07:14 AM  
are you happy with switching to FF?
Posted By Tranzistors
Replies: 335
Views: 27,833
Technically true. But at least in my photography I often crop half of the image away, for example, if I see that a background is too distracting, I will crop a landscape portrait into a portrait portrait. This can easily make a 36mp image into a 16mp image. You might argue that a 16mp “should be enough for everybody”, but lenses tend not to be super sharp, so those 16mp images can easely turn into effective 8mp images. And 8mp essentially are 4K screen size.

Having a 24mp APS-C will not help in any way. I suspect that effective megapixels will even be lower for APS-C for the same lenses.
Forum: Pentax K-1 10-19-2018, 03:50 AM  
Mirror lockup and potential sensor damage ...
Posted By Tranzistors
Replies: 7
Views: 1,413
I depends on your lens. If you have a 20mm f/5.6, it might not damage the sensor. If the sun is out of focus, it can help a lot too. Sunset might give you 3 stops, but a fast lens could still manage to hurt the sensor.

Disclaimer: I do not speak from my own experience.
Forum: Pentax K-1 10-19-2018, 12:09 AM  
Shake reduction in video was surprising
Posted By Tranzistors
Replies: 3
Views: 866
This means only one thing: more experiments required! :)
Forum: Pentax K-1 10-18-2018, 11:43 PM  
Shake reduction in video was surprising
Posted By Tranzistors
Replies: 3
Views: 866
Maybe this is general knowledge, but I had a problem with SR in video mode the camera was on a tripod, but the image was still floating. After a bit of experimenting I found out that the SR was not compensating for the camera shake, but for the movement of the face. Had to turn it off, because the video was in a tight framing and the SR exposed parts of props that shouldn't be visible. Not sure if the feature is really cool or a bit annoying. Couldn't find it described in the manual.
Forum: Pentax News and Rumors 09-19-2018, 04:07 AM  
K-1 II upgrade program extended in Canada due to unexpectedly high demand
Posted By Tranzistors
Replies: 36
Views: 2,935
Something similar in Swedish repair center. I still had to get in the queue by the end of September, but I will actually send the camera when the spares arrive (probably in October).
Forum: Repairs and Warranty Service 09-13-2018, 01:33 AM  
The official K-1 to K-1 Mark II Upgrade Feedback Thread
Posted By Tranzistors
Replies: 217
Views: 17,872
Gave my K-1 for an upgrade, the store clerk later told that the Swedish repair centre is overwhelmed with orders. The good thing is that I will have my K-1 for the early autumn shots. By the sound of it, my place in the queue won't be available until October. Looks like the upgrade is in high demand.
Forum: Pentax SLR Lens Discussion 08-31-2018, 06:33 AM  
Tamron introduces 2nd-generation 15-30mm F2.8 - Will Ricoh upgrade DFA15-30?
Posted By Tranzistors
Replies: 20
Views: 1,492
From the summary:


Coatings and IS are irrelevant to Pentax system. Not sure if Pentax uses Tamron AF. I wonder if the new elements do much for the image. Alas, there are no image samples.
Forum: Pentax News and Rumors 08-30-2018, 01:17 AM  
Photokina, Ricoh has Confirmed
Posted By Tranzistors
Replies: 1,960
Views: 121,432
I don't think we can judge the existence of Pentax spirit just by the facts alone. Being owned by Ricoh alone doesn't mean much. I work in a division of a company that was bought up some 20 years ago, but the autonomy our division has is very high. We feel more like vassals than an integrated unit.

Even with merger of Ricoh and Pentax divisions, it is unknown if they are truly integrated or which values persisted.
Forum: Pentax Forums Giveaways 08-29-2018, 01:34 AM  
Pentax Giveaway "What will you do if you win?"
Posted By Tranzistors
Replies: 180
Views: 4,853
Either sell it or have both K-1 cameras and won't swap the lenses as often, but it seems economically unjustifiable.
Forum: Pentax News and Rumors 08-27-2018, 11:38 PM  
Photokina, Ricoh has Confirmed
Posted By Tranzistors
Replies: 1,960
Views: 121,432
My local camera store staff believes so too, a 7K Theta.
Forum: Pentax News and Rumors 08-22-2018, 02:09 AM  
K3ii replacement
Posted By Tranzistors
Replies: 2,451
Views: 192,782
My local camera store guy agrees with you — not much new in Photonika, except a new Theta with K7 resolution. Is the sales guy reliable? I have no idea.
Forum: Pentax News and Rumors 08-17-2018, 06:00 AM  
D-FA* 85mm f1.4 also coming
Posted By Tranzistors
Replies: 1,820
Views: 173,360
Damn, it's like winning a lottery or something. I'm speechless.
Forum: Pentax News and Rumors 08-17-2018, 05:28 AM  
D-FA* 85mm f1.4 also coming
Posted By Tranzistors
Replies: 1,820
Views: 173,360
Oh, I have seen the pictures. They are undeniably sweet. I'm just hoping for something slightly less sweet, yet more affordable :)
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