JohnFredC

JohnFredC

Lives in United States Sarasota, United States
Works as a Software Developer
Joined on Apr 18, 2005

Comments

Total: 33, showing: 1 – 20
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On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

@Richard

Yes. But that f/32 isn't very practical. First you have to find a lens that supports F/32. Then the light has to be good enough, the scene stationary enough, and the noise characteristics of the sensor low enough, that a sharp exposure can be obtained at the required shutter speed. Those can very restrictive parameters, edging toward tripod / non-moving subjects territory.

In my experience, a small sensor camera can be much more flexible tool for extreme DOF imagery. My first little digital camera was a Nikon S1 in 2005: autofocus, no AS, only 5mp, too much noise over 80 ISO, 8x10 max print size.

But man, that effortless DOF!!! No more blurry backgrounds...

...or foregrounds. ;)

Direct link | Posted on Aug 28, 2014 at 18:10 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

"So your claiming depth of field control is unimportant?"

Not at all. Control over DOF is an essential tool.

"the effects sensor sizes have on sharpness & the depth of field"

DOF is a characteristic of lenses, not sensors. Read Richard Butler's posts again.

"yet you claim to be all knowing?"

Never made that claim.

Say...why not challenge yourself with a photo project:

With whatever camera you prefer, take a picture where everything from 1 ft to infinity is sharp (aka "in focus") to whatever standards you respect for sharpness. No cheating: everything sharp from 1 ft to infinity (everywhere in the picture + motion blur not tolerated). No focus stacking allowed.

There are plenty of suitable topics for such imagery, in both urban and rural environments.

Direct link | Posted on Aug 28, 2014 at 16:22 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

@Richard
Good posts, and they succinctly illustrate why I prefer smaller sensors for high DOF photography. 6" to infinity is hard to do and essentially unobtainable with a 28mm lens, but at least possible with 5mm @ f/5.6 and a reasonable CoC.

After spending all summer with the X-A1 , the trade-offs required in camera/lens size and "special handling" (high ISOs, high f-ratios, slow shutter speeds) to produce high DOF imagery tend to work against my ability to actually "get the picture".

Perhaps this topic would make an entertaining forum thread...

Direct link | Posted on Aug 28, 2014 at 14:11 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

"Depth-of-field is a property of a lens, its aperture (not f-number), and the distance between the focal plane and the subject being focused on."

A shorter focal length has more DOF (defined with regard to an arbitrary circle of confusion) than a longer focal length. Short focal lengths are more practical with smaller aperture lenses. But a smaller lens can only fully illuminate a smaller area, hence the smaller sensors used with them. Getting a 5mm focal length lens to illuminate a large sensor without vignetting would be an extreme engineering challenge: the lens geometry would require extreme curves, and there would be all sorts of aberrations to deal with, not to mention cost of manufacture.

So I continue to hope for better noise characteristics in smaller sensors with which I can use smaller lenses and maximize DOF.

Over and out.

Direct link | Posted on Aug 28, 2014 at 01:11 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

As forpetessake correctly stated above, DOF has nothing to do with sensor size. It is about the physics of refraction in lenses.

The Heliar (I don't have the 12mm version, only the 15mm) is designed to fully illuminate a 35mm ("full") frame, though there is some vignetting you can easily see in test images available on the web. The 4.7mm lens covers a 1/2.3" sensor.

Direct link | Posted on Aug 28, 2014 at 00:03 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

@Richard Butler

That word "roughly"... ;)

Theory is all well and good, but go to any online depth of field calculator (http://www.dofmaster.com/doftable.html is esp. useful) and stick a few focal lengths in.

For full frame, the shortest practical "rectilinear" lens I know of is the Heliar 12mm f 5.6 from Voigtlander.

One of my little cameras shoots at 4.7mm. Compare 4.7mm with the 12mm at f5.6 in the DOF table. Look at the hyperfocal distances while considering real-world DOF challenges, such as low angle street scenes and wind blown wheat fields in the evening.

I forever wish for sharper lenses and less noise at higher ISO, but after my foray into APS-C territory seeking same (Fuji X-A1, nice images, but only 16mm) I am returning to my smaller sensor cameras.

Direct link | Posted on Aug 27, 2014 at 19:40 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

@forpetessake "A smaller sensor doesn't have more DOF, it's the lens, not the sensor that have DOF." My point exactly. Lenses and sensors go hand-in-hand. Did you even read my post?

You find me a good (or just any!) 5mm lens (NOT a typo) that fills a large (or even just a 1") sensor with a rectilinear image at a usable scale and we'll talk.

What? They don't make such a thing? Those laws of physics (and economics), what a pain.

Perhaps you value shallow DOF, but I don't and struggle against it in most picture taking situations, even with the high DOF (=smaller sensor) cameras I prefer.

Direct link | Posted on Aug 27, 2014 at 12:00 UTC
On Fujifilm X30 First Impressions Review preview (373 comments in total)
In reply to:

ravi532: I expected that people will start moaning about this "small" sensor than one compared to current industry " standard " 1 inch sensor. This craze for size of sensor is reminding me of good old days of megapixel war incidentally started by sony...If sensor is so important then nikon D3000 TO D7000 must take same quality picture but it is not...most people buy without knowing what the sensor does just buy because it is larger in size..difference between {x20 and rx100 ii} is marginal during on-street morning and evening shoots...only at night rx100 ii performance stands out...eventually its for people who are nocturnal..for day light to me x20 performs better/equal to rx100 ii..[ I used both of them] and undoubtedly colors of fuji is unparalleled
camera is much more than sensor.. For god sake there is something called aperture...fuji[2- 2.8] is way better than its competitor rx100 II..
But yes without OVF the charm and retro feel is certainly missing.. overall to me its good one..

Another problem is depth-of-field.

We are trained (brain-washed?) to value bokeh in our images because there is physically no way to avoid it with lenses suitable for larger sensors. So manufacturers and art critics alike tout the beauty of out-of-focus photos.

For some images (some macro and some forms of portraiture), they are right. But for many other types of images, out-of-focus areas just look bad.

Only small lenses can offer the extreme depth of field that (IMO) makes photos look realistic.

For very-closeup-all-the-way-to-infinity everything-in-focus images, larger sensor/lens combinations simply fail to deliver, even with the shortest focal length, highest quality lenses available. Even a 1" sensor (considered small by the "pros") requires lenses whose depth of field is too shallow.

I applaud Fuji for recognizing the benefits of a smaller sensor supported by manual controls and dials. Too bad they didn't address the sensor itself, which strikes me as lacking.

Direct link | Posted on Aug 26, 2014 at 18:45 UTC
On Canon PowerShot G1 X Mark II Review preview (660 comments in total)

So disappointing. I want to replace my aging G11, but retain its functionality (esp. the dials/swivel screen). All Canon had to do to the G series to get another purchase from me was to improve the image quality and performance but leave the camera body/controls alone. Instead, look what we get in later iterations of Gs (G15/16 most egregiously), and now, my last hope for an improved G1 X, this thing.

Compare the G1 X II with a Fuji X-A1. The latter has a plastic behemoth of a kit lens, plastic body, isn't "pocketable", but the image quality blows the G1 X II out of the water (the widget tells the tale). And the Fuji is more than $200 cheaper on the street.

I know, I know, things are not as simple as that, features and specs differ, etc, but still...

After many years of Canon cameras in all sizes going back decades, it must be that I need to wake up and understand I am no longer a Canon customer.

Are you listening, Canon? The evidence would suggest not.

Direct link | Posted on May 8, 2014 at 14:35 UTC as 104th comment | 2 replies
On Leica T (Typ 701) First Impressions Review preview (2301 comments in total)
In reply to:

Silat Shooter: Came across this very extensive review/write-up on this camera.
Worth reading:
http://www.reddotforum.com/content.php/343-Leica-T-%28Typ-701%29-Review

Thanks for this link! Nice review with good pics and overview of the touch UI. The lenses look better than the sensor.

Direct link | Posted on Apr 30, 2014 at 13:49 UTC
On Sony Cyber-shot DSC-TX30 preview (50 comments in total)

I've had a Sony T100 (8Mp, similar form factor, NOT waterproof/shock proof) for 7 years this spring. It has been dropped on concrete (+ various other surfaces), and submerged in a pool. Still focuses & exposes properly. I've taken over 20k pictures with it and prefer it to my other cameras for many situations. For anything smaller than 16x20 the detail is sufficient to very good. This new TX30 will take even better pictures..

I love the folded optics, so discrete, and the placement of the lens in the corner means you can actually see the tiny little thing you're taking a macro of.

This camera can be pulled from your pocket, concealed in your hand, turned on with your thumb, a sharp, properly exposed and focused image snapped, the camera turned off (again with your thumb) and back in your pocket in less than 5 secs.

A great all-around camera for those who hate to carry a camera but like to take pictures.

I wish for WiFi, though.

Direct link | Posted on Feb 24, 2014 at 18:49 UTC as 12th comment
On CP+ 2014: Hands-on with Canon PowerShot G1 X Mark II article (200 comments in total)

So the flip-up screen essentially kills the camera's usefulness for portrait (vertical) oriented photography from positions other than eye-level.

65% of my photos are vertically composed. What was wrong with the previous flip-and-rotate design? The camera wasn't made any smaller by moving to the new, less useful design, plus the there are more moving parts in the screen mechanism and more ways to break it.

Sigh.

The lens looks great, I'm sure the sensor is adequate, the rings on the lens look, well, useful if two hands are available. The rest?

Not so much.

Direct link | Posted on Feb 13, 2014 at 15:17 UTC as 28th comment | 1 reply

Now we are talkin'! This camera is aimed directly at me. Directly. My only complaint is the inability to turn the back LCD face-in to protect it. That's just the way Sony rolls.

Direct link | Posted on Oct 16, 2013 at 12:17 UTC as 27th comment

This is very very creative of Sony. Exciting, even. Sony seems bent on innovating come hell or high water and I applaud them. Who else is testing the market with such interesting approaches? One of these days one of these things is going to "stick" big-time and this offering seems sufficiently well thought out to be a candidate.

If Sony is smart they will share the API with developers.

I would pair either of these with my Note 8 tablet. There is nothing quite like the ease of composing and focusing on an high-resolution 8" screen.

Direct link | Posted on Sep 4, 2013 at 16:18 UTC as 92nd comment
On 10 Photo Editing Programs (that aren't Photoshop) article (353 comments in total)
In reply to:

lesirotes: No mention of Zoner Photo Studio from http://www.zoner.com/ or the more limited free version Zoner Photo Studio FREE from http://free.zoner.com/

I second this choice. Except for projects that require layers, Zoner has replaced PSP (and Lightroom for most things) in my workflow. Zoner's advanced noise and sharpness (aka "soft contours") tools are very comprehensive. Adjustment dialogs are non-modal. Dual (side-by-side) thumb panels in the browser tab. IMO the best UI of any tool mentioned here, and I've tried them all. Reasonably priced.

Direct link | Posted on May 18, 2013 at 13:01 UTC
On 10 Photo Editing Programs (that aren't Photoshop) article (451 comments in total)

What? No Zoner (Zoner.com)? Try it. You may be pleasantly surprised!

Direct link | Posted on May 18, 2013 at 01:09 UTC as 109th comment | 1 reply

The problem with larger sensors is the size of the lenses. As long as manufacturers persist with camera form factors where the lens protrudes from the front of the camera, the sensor size will determine pocketability. This continuing reliance on historical camera design impedes progress in the areas debated so enthusiastically in this thread.

The first mfg who combines a larger sensor (1" would be swell) with a folded optics design (similar to the Sony T-series, for instance) and a decent zoom range (6x-10x), smart camera interface via large touch screen, and SLR-style mechanical controls ergonomically placed, will change the camera paradigm forever, and get my money almost immediately.

Direct link | Posted on Oct 16, 2012 at 22:05 UTC as 24th comment | 6 replies
On Leaving my DSLR at home: An iPhone experiment post (171 comments in total)

The point here is how convenience engenders creativity. I carry a tiny Sony (folded optics) everywhere I go, hidden in my pocket, an enormously more capable camera than any smartphone has. The camera itself is smaller than my Lumia phone. With such a device on ones person at all times, options for creative photography explode. Prints @ 11x14 @ 300 dpi are sharp as a tack and the DOF available without jumping through hoops is freeing. Suddenly, if you see a picture, you take it, and the camera will have gotten it, it goes back in your pocket, you move on. This method will change your photographic life, away from equipment fetishism (SLR enthusiasts take note) toward the best pictures you ever made.

This is great article. Let's have more like it.

Direct link | Posted on Oct 13, 2012 at 13:37 UTC as 70th comment

"SmartCamera". The "camera" component implies that the primary purpose is taking pictures/video. The "smart" component implies that the functionality, UI, and connectivity options are "soft", that is, implemented in software, and therefore expandable. I see no contradiction in a SmartCamera ALSO having mechanical controls and frankly am very excited about this development in the industry. It's a long time coming. Can't wait for a camera to use a wi-fi connected disk as its image store. Looking forward to an "open" camera API, too, because I'd like to write my own UI.

Direct link | Posted on Oct 3, 2012 at 18:12 UTC as 12th comment
On Just Posted: Sony Cyber-shot DSC-RX100 review article (373 comments in total)
In reply to:

JohnFredC: If Sony can fit a 14x zoom into my wife's HX9V, a camera essentially the same size as the RX100, then surely they could have fit a 5x or 6x zoom into this camera, despite the larger sensor.

The RX100 is too capable a tool to be saddled with such a slight zoom.

Actually, just the lens barrel would need to be bigger. It's already almost 4x, so what the hey, make it 5x and 5mm larger in diameter. The lens collapsing mechanism might grow a little too. Not a problem for me. It would still fit in my pocket, and be much more useful.

Direct link | Posted on Aug 30, 2012 at 00:26 UTC
Total: 33, showing: 1 – 20
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