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Forum: Pentax K-5 11-27-2012, 08:02 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
my case is certainly closed.
Forum: Pentax K-5 11-26-2012, 05:09 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
...right.

first of all, your post looks like JPGs. since Imaging Resource seems to meet 'your standards', here's a RAW ISO 6400 crop with zero NR. There's plenty more detail (the weave on both the dark and light blue squares) and considerably less crunchiness and chroma noise (false color) on the dark fabrics. for the record, that's simultaneously more detail *and* less noise, benefits of an empirically bigger (Sony) sensor.

PF has downsized the attachment but its still quite evident. I encourage you to look at the RAWs again yourself.
Forum: Pentax K-5 11-26-2012, 02:10 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
"Bigger" being larger than "smaller" is not an obscure law of physics.

I've posted two crops of lab controlled comparisons in this thread clearly showing the shadow noise difference in the aforementioned sensors. try turning your monitor's brightness up.

Other people have posted professional lab tests with empirical data backing up the noise implications I've posted. What have you shown besides your purely subjective thoughts on prints that nobody else here have seen?
Forum: Pentax K-5 11-26-2012, 01:11 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
Lord knows ive tried, but I don't think you know the definition of empirical evidence. nor physics for that matter.
Forum: Pentax K-5 11-26-2012, 08:30 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
Physics isn't a theory Normhead. Pentax working on a 36mp FF is.
Forum: Pentax K-5 11-25-2012, 09:16 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
I think you have a very skewed view of Pentax. aside from both making SLRs, Pentax in no way resembles the mammoth that is Nikon.

the difference between dozens of long available FF lenses and 20 year old film era patents is immeasurable. The number of Nikon FF bodies, lenses, users, aftermarket options and equipment, and professional service centers worldwide vastly outnumber Pentax's even if that number was 1. everything we've talked about is purely theoretical. While Nikon has been doing FF DSLRs as a main part of their global business for years. there's simply no comparison and that's why Pentax has always had to undersell them to have the minuscule impact on the market that they've managed to get thus far. Pentax could never come close to approaching Nikon's economies of scale on such a high-end part.



I'm not one who thinks more MP = more better. I am one who thinks more sensor area = better however, all else being equal (ie. Sony sensor) and I think the vast majority would agree (as would DxO). apparently you think 36mp is better than 24mp but what makes both sensors objectively better than the K-5 is that they are the same or newer technology at more than double the size. just facts, your purely subjective judgements on massively upscaled prints not withstanding. (how big are those files on your computer and hard drive btw?)
Forum: Pentax K-5 11-25-2012, 08:28 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
at least he has skill and competence in spelling..
Forum: Pentax K-5 11-24-2012, 04:23 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
Price. Pentax can't charge the premium required for the 36mp FF sensor, especially considering it only has a handful (literally) of FF lenses to go with it.
Forum: Pentax K-5 11-24-2012, 04:14 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
well, there's both subjective proof (these comparisons I'm posting) and empirical proof (DxOMark scores) that the larger pixel-pitch of the 24mp sensor produces lower read noise in the shadows than the K-5 and D800 sensor produce (both have same pixel pitch). Low sensor read noise being what allows the great DR (and enhanced DR mode) of the K-5 and the other non-SLT Sony sensored cameras.

While the D800 can be downscaled to 24mp and get a similar SNR result as the D600 - it's the same sensor technology and surface area after all - I highly doubt the older, smaller Sony pixels of the K-5 are somehow better than Sony's newer, bigger ones, much less better enough to overcome 150% less overall sensor surface area, physics being what they are. I certainly don't see it, neither did DxO, so I don't know what exactly you're looking at if you can't acknowledge the obvious chroma noise in the shadows of these comparisons...the D600 is much cleaner.

I can appreciate your brand enthusiasm, but I'm not sure where you get the idea that Pentax has always demanded the very best IQ in their DSLRs, like most manufacturers, there have been very distinct low-points (the K-7) and high points (the K-5).
Forum: Pentax K-5 11-24-2012, 10:59 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
here are some comparative images.

on the contrary - 24mp FF may just be the sweet spot for many of us who use High-ISO for low-light and high shutter speeds, I think the benefits of the larger pixel pitch (AND higher resolution) are pretty clear. I'm awaiting the Sony RX-1 review to see another implementation of that sensor without a mirror fixed in front of it. this 24mp sensor being the sensor Pentax would most likely use when and if it ever gets to FF....you might become a bigger fan of it then...
Forum: Pentax K-5 11-24-2012, 08:23 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
I think he figured the FA*24 was too old, heavy and unoptimized for the APS-C format (ie. not good enough IQ) to be worth carrying. and the added weight of Nikon's D800 and top-level, digital era 35mm lens was. But you should ask him.

Meanwhile an Olympus OM-D and the new 17mm 1.8 likely delivers near the same IQ as the Pentax combo, but at less than half the size and weight.
Forum: Pentax K-5 11-24-2012, 08:07 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
like you said, "of course" it is and shouldn't be discounted. The DxO characteristics look similar because it's the same Sony sensor technology, only there's 150% more of it.

You can't make a big deal over the 1-2 point lead in DxO the K-5 holds over all the other APS-C cameras that use the same sensor, but then casually dismiss the Nikon FF's 10+ point advantage.
Forum: Pentax K-5 11-23-2012, 10:40 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
Unlike with the Pentax route, both the Nikon body and lens are taking full advantage of their full-frame mount and format, delivering IQ on a whole other level. Think of it this way, the D800 is more akin to a 645D in an SLR, and obviously he thinks the size and weight are worth it in those terms. He could've opted for the smaller D600 afterall.

If size was the priority, there are plenty of more compact and lighterweight 16mp crop-sensor cameras out now, with excellent Sony (or Fuji) sensors and smaller and faster lenses (and in focal lengths he prefers). If you're lucky enough to afford more than one camera like he is, there are better options out there at both ends of the spectrum.

As for Luminous Landscape, that was a looong time ago and time and technology have moved on even if Pentax hasn't. An FF Pentax similar in size to the K-5 with some FA Limiteds would go a long way right about now.
Forum: Pentax K-5 11-23-2012, 01:03 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
I think by "new" he means an up-to-date, optimized for the format lens. The FA* 24 was intended for FF film and is a big prime, especially by Pentax standards, the Limiteds likely his biggest reason for choosing the Pentax in the first place (was for me).

Lugging around an outdated hunk of glass that your camera can only use a part of is far from optimal, and completely unnecessary in 2012 with all the excellent new options out there.
Forum: Pentax K-5 11-21-2012, 11:57 PM  
Very positive DxOMark review of K5 II
Posted By illdefined
Replies: 31
Views: 3,635
They'd actually be competitive with the other DSLR manufacturers again.
Forum: Pentax K-5 11-21-2012, 12:16 PM  
Very positive DxOMark review of K5 II
Posted By illdefined
Replies: 31
Views: 3,635





QuoteQuote:

The Pentax K-5 II is a remarkable piece of kit, it scores better in the DxO mark tests than several very highly thought of, full frame DSLRs, beating all the cameras made by Canon! It manages to do this in a body that is very reasonably priced. Add to this that you can fit lenses to the K-5 II that Pentax made as far back as 1975 and the multitude of independent lenses that are available and this camera becomes not only a remarkable performer but also a fantastically versatile camera at an exceptional price..



by far my favorite line.
Forum: Pentax K-5 11-21-2012, 12:13 PM  
Very positive DxOMark review of K5 II
Posted By illdefined
Replies: 31
Views: 3,635
That only applies to Pentax lenses. Don't ever go into that section...
Forum: Pentax K-5 11-21-2012, 12:04 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
That would be letting the brands you associate yourself with "define" who you are. this illusion is why Branding/Marketing Depts. exist.
Forum: Pentax K-5 11-19-2012, 01:10 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
i'm quite familiar with him and his blog (see above). that's why him effectively saying goodbye to Pentax (for now) is particularly sad.
Forum: Pentax K-5 11-19-2012, 01:07 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
It is a great blog.

to me, what's tragic about this post is that if only the K-5 were FF it would likely be his favorite camera. he's heaped praise on the 35mm Limited (apparently FF-compatible) and is also fond of the 40mm focal length (DA Limited also FF compatible). he obviously appreciated the qualities of the K-5 at the time it came out, but time has marched on and more compelling cameras have drawn his attention.
Forum: Pentax K-5 11-19-2012, 12:17 PM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
or it's him shrewdly trying to sell his K-5 without simultaneously pissing off his biggest advertiser.

ultimately, he admits barely using it and using other cameras instead (and not a K-5II). not exactly an endorsement. if his opinion matters so much, why doesn't that last bit matter?
Forum: Pentax K-5 11-19-2012, 11:54 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
epically sad if true considering Pentax is his biggest advertiser.
Forum: Pentax K-5 11-19-2012, 11:29 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
I resorted to finding the FA*24 to get that crucial 35mm equivalent. solid lens, the finish looks like it was born on my K-5 Silver, but it's huge by Pentax prime standards, even the other FAs. ironically the Full-Frame FA 35mm f/2 is much smaller and lighter in comparison.

looking at the tiny, newly introduced Limited-like Olympus 17mm f.1.8 (35mm equivalent), I realize I'm sick of the compromises and workarounds dealing with APS-C. looks like Michael Johnston did the same.
Forum: Pentax K-5 11-19-2012, 10:39 AM  
Mike Johnston, The Online Photographer, comes clean about his K-5
Posted By illdefined
Replies: 76
Views: 9,234
not sure you noticed, but this is him putting his K-5 up for sale. and not for a K-5II.
Forum: Pentax Full Frame 10-24-2012, 05:15 PM  
FF Under Development
Posted By illdefined
Replies: 1,291
Views: 151,706
Pal apparently only likes to make statements not responses.
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