Richard Butler

Richard Butler

DPReview Administrator
Lives in United Kingdom Seattle, United Kingdom
Works as a Technical Editor
Joined on Nov 7, 2007
About me:

Richard graduated as a scientist but had a lot more fun writing and shooting for his university magazine. A number of years spent variously as a reporter, writer and editor on science and engineering titles combined his knowledge of science with his interest in images and words. But it was spotting the connections between emission spectra, white balance and all the nonsense he'd taught himself playing around in Photoshop that helped kindle an interest in digital photography. Searching for a camera led to him discovering DPReview and Richard was recruited by Phil Askey in 2007. He's been combining his love of photography, communication and attention to detail (pedantry?) ever since.

He has unusually strong opinions about lenses for the APS-C format.

Comments

Total: 6920, showing: 6061 – 6080
« First‹ Previous302303304305306Next ›Last »
In reply to:

Cane: So if you are outside and don't have wifi, you are stuck using the cable only, like it's 1980?

Many smartphones can act as a Wi-Fi hotspot, so you could use that to avoid the recreation of your strange version of the 1980's in which we all had pocketable devices capable of programmable timelapse, gps and face recognition.

Worth checking that your mobile network doesn't charge a horrendous fee for use as a hotspot, of course.

Link | Posted on Nov 26, 2012 at 23:02 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Amin Sabet: In the 'Features' section there is a great figure comparing equivalent apertures, and I think the data shown for the Panasonic LX7 are based on the whole sensor dimensions (1/1.7" sensor). However, the implementation of that camera's multi-aspect ratio sensor is such that it is effectively 6.7 x 5.1mm (1/1.8") in 4:3 aspect ratio and less than that in other aspect ratios.

Taking that into consideration, the LX7 lens becomes 24-89mm f/7-11.6 equivalent with crop factor calculated based on sensor area or 24-91mm f/7.2-11.8 equivalent with crop factor based on sensor diagonal.

We aren't being unfair to it - we're showing the proportions of the largest area of the sensor you can use (which is the 4:3 image size in this instance). That's the same measurement we're using for all the other cameras here, too.

Link | Posted on Nov 26, 2012 at 19:44 UTC
On article Dpreview Recommends: Top 5 Compact Cameras (554 comments in total)
In reply to:

RogerCooke: @RACHOTILKO: I found this article helpful http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm

@ Beach Bum: Please mind your tone, or sign off.

Zos, you've got cause and effect the wrong way 'round.

A FF sensor does collect 7.5 times as much light as a compact camera.

The thing that stops the exposures being totally different is ISO.

ISO (to simplify a little bit) is basically 'whatever it takes to give a correctly exposed image with a given aperture/shutter speed combination.'

ISO 100 means very different things at different sensor sizes - it's defined to compensate for the exposure differences you'd otherwise get.

Link | Posted on Nov 26, 2012 at 19:33 UTC
On article Dpreview Recommends: Top 5 Compact Cameras (554 comments in total)
In reply to:

olyflyer: Interesting comparison. I don't know if I'd place them in the same order, but I'd certainly pick the G15 before the other four, so it is definitely the "winner" even in my book.

They're in alphabetical order (and are not considered directly comparable).

Link | Posted on Nov 23, 2012 at 22:58 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Amin Sabet: In the 'Features' section there is a great figure comparing equivalent apertures, and I think the data shown for the Panasonic LX7 are based on the whole sensor dimensions (1/1.7" sensor). However, the implementation of that camera's multi-aspect ratio sensor is such that it is effectively 6.7 x 5.1mm (1/1.8") in 4:3 aspect ratio and less than that in other aspect ratios.

Taking that into consideration, the LX7 lens becomes 24-89mm f/7-11.6 equivalent with crop factor calculated based on sensor area or 24-91mm f/7.2-11.8 equivalent with crop factor based on sensor diagonal.

You may be right - I'll check when I'm back in the office. I've calculated the LX7's active area before but I can't totally rule-out forgetting to use that figure in these calculations. Thanks for pointing it out - I'll change it as soon as I can.

Link | Posted on Nov 23, 2012 at 22:34 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Mark Chan: Obviously going to come off as an OLY fanboy, but I do not understand how your review did not mention the XZ-1 OR the newer XZ-2 as comparable competition, and have to actually resort to mentioning the Nikon 1 series or m43.

I have held the XZ-2, and its is equally built like a tank; has the fast AF akin to that of the PEN series if not the RX100, and has a nice f1.8 - 2.5 lens, albeit shorter (112 vs 140 at long end). I would expect that your reviews do mention competition in its entirety.

Oh btw, the XZ-2 is a lighter package WITH a similarly sized sensor.

There are too many competitors to discuss every single one in every review, so Lars focused on the nearest competitors. We'll be doing a roundup of this class of cameras in the coming weeks, including the XZ-2 and a handful of others.

Link | Posted on Nov 23, 2012 at 08:44 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

CameraLabTester: The Canon G series reached the limit of it's practicality genre in the G7.

With the way Canon is churning out cameras of all kinds, pretty soon there will be a new Canon camera every $100 from $300 to $3,000.

It goes the same way to Nikon too.

...and soon, Sony.

Panasonic.

Olympus.

.

Some of the cameras being churned out are pretty interesting, though.

Link | Posted on Nov 23, 2012 at 08:42 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Hélios Méroé: So I'll ask my question again since apparently nobody wants to answer?..
The Nikon P7700 was out well before the G15 and is logically in direct competition with the Canon G15.. so when can we expect a review of this APN? .. And would it not make more sense for a site like Dpreview and for customers to respect the timing of outputs in this category?..
Thanks by advance for the answer..it will probably help to remove some doubts (at least mine..) about the relative idépendance of photo web site like yours..

We have limited resources, which means we can only review a small number of cameras at any given time. We prioritise cameras based on various factors, with most of it to do with how much interest there appears to be from our readers (and how interesting they seem when we try using them).

We have shot a samples gallery with the P7700 and will be including it in a round-up that will be published soon (along with several other cameras that we would have loved to have had time to review), but we can't review every single camera.

Link | Posted on Nov 23, 2012 at 08:40 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

timo: At the risk of being dismissed as a Pentax fanboy, I would respectfully ask why the K30, which scored three points more on the (admittedly dubious) scoring system, got only a 'Silver Award'; while this Canon got a 'Gold Award'?

It would be ignoble to suggest that DPReview has regard to which camera companies butter its bread, so I won't. But I would welcome an explanation.

Because, to give an extreme example, a good compact camera should get a good score, even though it's nowhere near as capable as a good pro-level DSLR.

Scoring everything on the same scale would give a pro-level DSLR a score of, say, 85% and a travelzoom around 15%. And, once you start making categories, you have to make boundaries, and sometimes cameras that are plausibly comparable fall on opposite sides of those boundaries.

Sadly this is unavoidable.

Link | Posted on Nov 22, 2012 at 01:24 UTC
In reply to:

Retzius: cock-a-hoop?

If only someone would provide an explanation.

Link | Posted on Nov 22, 2012 at 01:09 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Digitall: Houston, we have a problem.

Will someone please enlighten me?

The significance of the medals worth the importance we want to give, but would like to understand the following situation:

Sony RX100 78% Overall score = Silver medal

Canon G15 76% Overall score = Gold medal

Thank you.

The number is the score the camera gets from our tests and is about as objective as we can make it. The award, or lack of it, is based on the reviewer's overall opinion, having spent around a month living with the camera.

I admire the RX100, I liked the RX100 but I didn't love it - the experience of using it wasn't as compelling as the raw numbers might lead you to expect.

Link | Posted on Nov 22, 2012 at 01:01 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Teru Kage: How much longer can prosumer DCs like this last? Traditionally, these have served as niche cameras to bridge the gap between compact DCs and D-SLRs. But with the introduction of MILC cameras, I can't see much of an argument in favor of buying pro-DCs. The size and price difference is negligible, and the performance of the MILCs are generally a few stops higher.

We thought the same thing when MILC started getting serious but cameras such as this and the RX100 show that there's still room for a smaller camera with a fast-ish fixed lens. They're still pocketable in a way that Mirrorless isn't.

Link | Posted on Nov 22, 2012 at 00:56 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

ybizzle: We need a shootout!

X10 vs G15 vs P7700
and
XF1 vs S110 vs LX7 vs EX2 vs XZ2
and
G1X vs RX100 vs X100

We're hoping to do something along exactly those lines.

Link | Posted on Nov 21, 2012 at 22:53 UTC
On article Just Posted: Canon PowerShot G15 review (334 comments in total)
In reply to:

Francis Carver: "The G15 is one of the latest wave of updated enthusiast compact cameras and it follows this season's trend...."

Gee-whiz, who is writing this laudatory copy, for cripe's sake? Canon G15 is a Zzzzzzz-ahumm camera that looks like a vintage 1960s East German design. There are actually cutting-edge digital cameras in the crowded marketplace today. It's just that the Canon G15 is not one of them.

Would you care to identify which part of that quote is laudatory? Or even includes a value judgement, for that matter?

The G15 may look like existing G-series models but it's smaller and has a faster lens - which makes it much more interesting if you ask me (and that's speaking as someone who hasn't ever particularly enjoyed the G-series cameras).

Link | Posted on Nov 21, 2012 at 22:40 UTC
On article Canon EOS 6D sample images added to hands-on preview (252 comments in total)
In reply to:

msatlas: Are these JPEGs straight out of the camera? Any kind of PP?

Yes. Unless we specify otherwise, our sample galleries are always straight-out-of-camera JPEGs.

Link | Posted on Nov 20, 2012 at 00:17 UTC
In reply to:

Ron Poelman: Another ad,
really, DPR ???

As with ALL news on dpreview - we did not receive a single penny from anybody to run this post.

I saw the movie in question and thought the island was interesting. A friend I saw it with found Micheal's site and I thought it would be interesting to other people too. When I realised it was a blog by someone I'd seen contributing to our forums, that sealed it. That's why it's featured.

Link | Posted on Nov 19, 2012 at 23:57 UTC
In reply to:

TORN: Olympus is trying to sell 5% distortion as premium product for 500+ Euro again with this 17mm lens as they already did with their 12mm. This might be fine and/or correctable in close distance for all practical means when most of the time only the inner part of the image counts but for subjects in greater distance you never get more than just good borders. I am talking architecture and especially landscape.

Sorry Olympus but no sorry. 5% distortion is nowhere near premium except for the price for sure. If you want to learn how to control distortion have a look at the Sigma 19mm dear Olympus and learn your lesson.

Hopefully they have fixed the manual focus mode from the 12mm at least. Really no premium either, when you are not able to precisely select your focus but only stepwise.

Source: http://www.m43.eu/zdjecia/olympus-17-mm-f18-pierwsze-zdjecia-obiektywem/2/

I'm saying no such thing.

I'm saying that measuring a lens with an element of its design cancelled-out is a nonsensical way of doing it.

If the corners end up soft, then criticise that, but don't say 'if I bypass the designed-in distortion correction, this lens is distorted' - it's like complaining that a lens lets in water if you remove all its seals and gasketting.

Link | Posted on Nov 15, 2012 at 22:52 UTC
In reply to:

tkbslc: I want to be the first knucklehead to mention 34mm f3.6!

Really, though, it sounds awesome, but we do already have 20mm f1.7 which is not all that different.

It is much faster focusing - essentially instant and virtually silent.

Link | Posted on Nov 15, 2012 at 18:07 UTC
In reply to:

TORN: Olympus is trying to sell 5% distortion as premium product for 500+ Euro again with this 17mm lens as they already did with their 12mm. This might be fine and/or correctable in close distance for all practical means when most of the time only the inner part of the image counts but for subjects in greater distance you never get more than just good borders. I am talking architecture and especially landscape.

Sorry Olympus but no sorry. 5% distortion is nowhere near premium except for the price for sure. If you want to learn how to control distortion have a look at the Sigma 19mm dear Olympus and learn your lesson.

Hopefully they have fixed the manual focus mode from the 12mm at least. Really no premium either, when you are not able to precisely select your focus but only stepwise.

Source: http://www.m43.eu/zdjecia/olympus-17-mm-f18-pierwsze-zdjecia-obiektywem/2/

Is that 5% distortion if you intentionally circumvent the correction that is part of the lens' design?

Criticise the corner performance if it's no good, but attacking the measured performance of a lens with a corrective element (software or physical) is nonsense.

Link | Posted on Nov 15, 2012 at 18:06 UTC
On photo IMG_0846 in dpreview review samples's photo gallery (6 comments in total)
In reply to:

Alejandro del Pielago: Excellente noise level and great detail in 6400

Here the subject offers natural forms no always easy to focus neither reproduce by sensors. With Sony sensors -for example- even in daytime hunt with littles leaves as main subject. Of course, there's a strong light behind the tree but this ISO 6400 by night makes a very good job.

Dear Richard, did you use manual or auto focus???

Everything in this gallery was shot with autofocus.

Link | Posted on Nov 14, 2012 at 00:42 UTC
Total: 6920, showing: 6061 – 6080
« First‹ Previous302303304305306Next ›Last »