Dave Oddie

Lives in United Kingdom Chester, United Kingdom
Works as a IT
Joined on Jan 23, 2002

Comments

Total: 473, showing: 1 – 20
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In reply to:

Cerebral Knievel: How is bokeh relevant on a 58mm lens? Who shoots portraits with a lens of that length?

"Common focal length for wedding work, etc."

Depends what you mean by wedding work. Full length shots of bride & groom or family groups, then fine.

For a head and shoulders portrait of the bride I'd expect a minimum of 85mm on a FF camera to ensure a flattering perspective i.e. no unfortunate exaggerations of features. So this lens would give you that on aps-c.

This is the conventional approach. I am sure many will try different things and go for deliberately exaggerated perspective with an even wider lens but that should be a deliberate choice.

Link | Posted on Sep 21, 2017 at 10:55 UTC
On article Canon EOS Rebel SL2 / EOS 200D Review (527 comments in total)
In reply to:

MAC: for $699 during 4th of July Holiday I got the T7i. The 21-27 raw buffer vs 6, and the 45 point focus versus 7, worth $150 more. I've owned 10 dslr's since my first $2K d30 15 years ago. T7i is my favorite fun camera and a Blast to shoot!

"Awesome live view too...I rarely use viewfinder any longer unless I need it like on real sunny days."

So you use your camera via the LCD like one of those old fashioned early digital camera that didn't have any viewfinder at all or like a smartphone? How does that work with longer lenses?

I suspect it's not that live view is so good that has you using the LCD so much but the fact the viewfinder is so poor.

It's a great example of why EVF's are so much better on aps-c and smaller sensor sized cameras. (I prefer them on FF as well but I know many do not).

Link | Posted on Sep 20, 2017 at 08:49 UTC

New "protocol"? Sounds fancy and scientific. It's not.

"The company has re-tested some top-tier phone models under the new protocol, finding that in some cases scores increased when looking at features like low-light performance, bokeh, and zoom."

Which just shows what a load of bunkum DXO mark is. Scores increased? Really? So some phones got relatively better than others overnight. Mind you I am not surprised. Any site that invented it's own "megapixel rating" is not going to come up with a scientific method for anything.

There should be no room for such subjective measures. Lenses, MTF. Sensors resolution, noise & DR. Absolute measures directly comparable (if they are made consistently).

Link | Posted on Sep 14, 2017 at 20:36 UTC as 3rd comment
In reply to:

razorfish: Very long telephoto --- *Check*
Fast focusing for action --- *Check*
Decently wide --- *Check*
Sensor with good DR / ISO --- *Check*
Lens good quality, brightness --- *Check*
Good video functionality --- *Check*

Ultra wideangle --- *No*
Thin DOF at 85mm, environmental portraits --- *No*
Can be made small, inconspicuous --- *No*
Very high brightness, indoors without flash --- *No*
Film Simulations, no need to use RAW --- *No*

Overall, this checks more boxes than any all-in-one camera before. But there are still needs that only an interchangeable lens camera can cover. Really exciting that Sony develops something like this though.

You only get film simulations on certain camera brands and models such as Fuji and if they are that important to you, you won't be buying cameras not just from Sony and not just the RX10iV but other manufacturers also.

For me personally the only one in your list of "no's'" I would miss is Ultra wideangle. If I could fit a reasonably sized 0.7x converter on the front for when I expected to need such a wide angle then I might be tempted.

This would still give me an outfit much lighter than my A77, 11-18, 16-80CZ and 70-300G I tend to lug around as my usual default kit.

Link | Posted on Sep 13, 2017 at 16:13 UTC
In reply to:

AustinMN: "ZEISS® Vario-Sonnar T* 24-600mm F2.4-F4 Lens"

"Maximum aperture F2.4–4"

What am I missing? Isn't f/4 at 600mm a max aperture of 150mm (six inches)? There is no way that lens is f/4 at the long end.

@JackM "However the ... noise characteristics are 3 stops worse than FF. "

Well that is the theory and a theory is all it is. Compare the noise characteristics of the RX10 to an older generation FF camera and the latest generation and you will see a difference in terms of relative noise performance. So for example the RX10 may will be "closer" to the noise performance of a Sony A900 than the A7 with its extremely low noise 12mp sensor.

The only way to determine how many stops worse than FF the RX10 is, is to observe the real world performance. If it's got a crap sensor it could be more than three stops worse , it could be less or it could be bang on three stops but this will vary depending on what FF camera you compare it to.

Link | Posted on Sep 13, 2017 at 16:02 UTC

33 page reviews, those were the days! (10 years later we got 9 pages for the A99II, a far more capable and complex camera).

Link | Posted on Sep 7, 2017 at 14:59 UTC as 55th comment | 1 reply
In reply to:

vratnik: The tiltable built-in flash in X-E series was what made it X-E series.
Where's the d-pad? Afaik the joystick will be only for autofocus area movement.
Seems to me like they downgraded X-E line into entry-level class.
Glad I didn't wait and went for T20, otherwise it would be Olympus Pen-F.

"You can justify it on a larger 'prosumer' DSLR..."

I am not sure you can. I thought manufacturers had finally woken up to the fact that things like a tilting LCD and a pop up flash were useful things to have even in Dslrs (look at the Nikon range).

Instead they still seem to promote this inverse snobbery approach that wants to imply it's not a serious camera if it's not missing these two features many find useful. Canon removed the flash of the 6D MkII as an example of this backwards thinking.

Link | Posted on Sep 7, 2017 at 09:58 UTC
In reply to:

skanter: Fixed LCD? Useless.

"The X-T20 is perfectly positioned for those that want tilty screen. The X-E range has always been fixed."

So it's always had inferior ergonomics! Great (not)!

Why would anyone NOT want a tiling screen? All the old arguments against this are as silly now as they were when people first started making the excuses.

Link | Posted on Sep 7, 2017 at 09:52 UTC
In reply to:

sts2: Raging comments about equivalence, how it's not MF but only slightly bigger than full frame, how it's overpriced, and how much better the GFX is in 3... 2... 1...

"so-called 1.3x MF crop. PhaseOne XF 100mp sensor is 1.0x or full-frame MF."

What on earth is "full frame MF"? Medium format is a generic term that comes from the film era used to describe formats from 6x4.5cm to 6x9cm

Link | Posted on Sep 6, 2017 at 15:56 UTC
In reply to:

Smitty1: Meanwhile, in the USA, hundreds of millions of people go about their business daily and don't get shot by the cops.

Sure, there are bad cops. And a host of events involving bad policing that don't make the news. Granted. However, by and large what you see on the news are still fringe articles, horrifying indeed, but not the norm.

Yet if you largely get your information off of the news (who is making a profit by eliciting emotional response) then you might end up falsely thinking this is the norm.

Nevertheless, the media does it's best to document the sensational stories, because they get clicks and clicks mean money. Less violent stories only get a fraction of the views. (Yes, I've asked media and amazingly got that honest response)

So you don't think cops shooting innocent people is newsworthy or should be reported?

What other incidents should be brushed under the carpet?

Link | Posted on Sep 6, 2017 at 15:34 UTC
In reply to:

Digital Suicide: Since there is no riots and burning cars, I assume it was a white man...

@The Silver Nemesis: I think the reason you will find protests occur more readily when an African-American is hurt because they are "hurt" disproportionately. The statistics show they are far more likely to be "hurt" than a caucasian. There is obviously a real problem here based on race and you'd have to be blind not to see it.

It's not unique to the USA. In the UK black youths have been far more likely to be stopped and searched by police than their white counterparts. Not the same as having your head blown off but you get the point. It's a racist thing.

Link | Posted on Sep 6, 2017 at 15:07 UTC
In reply to:

joyclick: The officer should be sacked and must compensate the victim,if he is idiot enough to mistake photo-gear for a weapon

"My subjective impression is, that the chance to be killed during a US-vacation is way higher as making vacation in Paris."

I just got back from a week's holiday in Boston and felt very safe there day and night. I have in the past travelled extensively in the USA visiting many national parks and big cities, LA, SF, NYC Chicago, Seattle, Phoenix, San Antonio, San Diego and several more.

Many years ago I even landed one time when the LA riots were on. Earlier planes were being diverted to SF as people were taking pot shots at aircraft landing in LA. Never cleared US customs so fast in my life as they rushed us out and on to our hotel which was under curfew that evening.

That is the only trouble I have ever come close to and I have always felt very safe there. It's a big country and you have to be very unlucky to run into a nutter.

Link | Posted on Sep 6, 2017 at 14:56 UTC
In reply to:

englishfil: Problem. Country with lousy, lax gun laws that means deaths from firearms are on a par with those from road accidents (source :Small Arms Survey). With so many firearms in circulation the Police. sensibly, are armed. However, when frightened, challenged what tool will that Police officer reach for? If you only have a hammer every problem becomes a nail.
The solution: for Police - much better (stress) training, more 'less lethal' options, tougher staff selection, radical change in attitude; for US society - wake up and smell the coffee -the 'Wild West' ended 100 years ago - guns do not make you safer they make the USA a sad exception amongst civilised countries; for US Politicians - what counts more? the lives of people or that bung from the arms industry?

" How can so many police forces act according organically?

There is no national police academy guidelines, nor exam."

You sort of answered your own question. Why would anyone object to a Federal, US-wide law or set of national police academy guidelines, or exam enforcing mandatory levels of firearms training (and I don't mean marksmanship but training about when to use the guns and when not)?

I am sure someone would object based on some cock and bull nonsense about "too much government" or limitations on State legislatures freedoms
or some other equally daft reason but if so that would just be another indication that despite being an independent nation since 1783 the US "state" is still very immature.

Link | Posted on Sep 6, 2017 at 14:36 UTC
In reply to:

englishfil: Problem. Country with lousy, lax gun laws that means deaths from firearms are on a par with those from road accidents (source :Small Arms Survey). With so many firearms in circulation the Police. sensibly, are armed. However, when frightened, challenged what tool will that Police officer reach for? If you only have a hammer every problem becomes a nail.
The solution: for Police - much better (stress) training, more 'less lethal' options, tougher staff selection, radical change in attitude; for US society - wake up and smell the coffee -the 'Wild West' ended 100 years ago - guns do not make you safer they make the USA a sad exception amongst civilised countries; for US Politicians - what counts more? the lives of people or that bung from the arms industry?

"Agree, but strangely the highest head count of any population that own guns are the Swedes."

What do you mean by that? I just looked up total guns owned per 100 of the population and in Sweden it's around 20 v the USA where it is actually 101.
There are approximately 7 times more gun deaths in the USA v Sweden as well. Switzerland has double amount of gun deaths than Sweden and higher gun ownership (or civilian access to guns due to military service) than Sweden.

And approx 50 (yes fifty) times more gun deaths in the USA than the UK. These "death" stats are per 100,000 of the population and come from gunpolicy.org.

What is interesting to me is the European countries that have more liberal gun laws or require the civilian population to have a gun due to military service have much higher rates of gun death than the UK. About 6.5 to 14 times the UK for those two countries.

Unsurprisingly, there seems a direct correlation with amount of gun ownership and death from shooting.

Link | Posted on Sep 6, 2017 at 14:28 UTC
In reply to:

Joe Pineapples II: So it's equivalent to a 24 mm f/11 lens on a FF camera? For $1k I would be hoping for something a bit better.

"@Dave Oddie Not really, because the system is limited by shot noise, which is external to the sensor."

That isn't right either. The shot noise is the signal to noise ratio. As we know larger sensors have a better SNR than smaller ones BUT with modern sensors this only becomes significant under more challenging conditions. As DPR's article on shot noise says "On a bright day, you're unlikely to notice any significant difference in the highlights and midtones since, even on very small sensors, you're usually capturing enough light to give a good signal-to-noise ratio such that the noise isn't particularly visible. "

Unless your subject matter is a black cat in a coal cellar while the smaller sensor has a poorer SNR it doesn't matter most of the time. There is no 4 stop difference apparent so while theory says there is, we can't see it and it's certainly true the perceivable effect of shot noise varies with image brightness. So stating noise equivalence is pointless IMO.

Link | Posted on Sep 4, 2017 at 16:31 UTC
In reply to:

Joe Pineapples II: So it's equivalent to a 24 mm f/11 lens on a FF camera? For $1k I would be hoping for something a bit better.

" So measured by making two photos look as identical as possible in terms of DoF and noise, the equivalent aperture is f/11."

In terms of DoF yes. You'd have to stop down to F11 to achieve the same DoF from the same subject distance and f.o.v on the larger sensor.

However the noise equivalence is nonsense. There is no hard and fast rule that says all 1 inch sensors are 4 stops noisier than a FF sensor simply because all sensors are not equal. You only have to think about Sony's 12mp and 42mp FF sensors to realise this. The former is much less noisier than the latter so there has got to be a different "noise equivalence" for the 1 inch sensor when compared to each of these.

Then you have to consider what advancement (if any) has been made in the sensor technology used for the 1 inch sensor.

There are simply too many variables to say there is a constant 4 stop advantage for the larger sensor and this is before we even consider what this means in practice e.g. when printed.

Link | Posted on Sep 4, 2017 at 11:58 UTC
On photo 2014_1211_140657AA in the The Bride challenge (22 comments in total)
In reply to:

PhotoTeach2: Since I did not vote, (didn't even see the challenge at all), I suppose I should-not comment but I think this is a "terrible" win.

Except that the subject is a beautiful girl, I simply don't like ANYTHING about the photo.

All "brides" should be wearing a "veil", (to define her as a "bride").

I don't like only a (small) part of the flowers visible and not a definable part of a photo, (again to further identify her as a "bride").

And I don't like the background, (with a line entering her chin and the black/corners).

It is well-lit, (except for the overexposed shoulder).

I liked several/many of the other entries much better, (actually all with either the veil and/or bouquet).

"All "brides" should be wearing a "veil", (to define her as a "bride")"

Well that is just a matter of opinion and a rather old fashioned one in my opinion. A bride is a woman who is just about to or who has just got married (after which vales are rarely worn any longer) and a bride isn't defined by the vale.

I do agree with some of your comments about the technical aspects of the photo particularly the background line. That said I had not noticed it because (like most I suspect) my attention was grabbed by the very beautiful girl. On a small size image viewed on screen perhaps not a big issue but if this were blown up to a large print then over time I am sure most people would become distracted by it.

Link | Posted on Aug 24, 2017 at 15:24 UTC
On article Throwback Thursday: the Nikon D700 (113 comments in total)

Very nostalgic. Not the camera, the 32 page in depth reviews. What happened to them!

Link | Posted on Aug 24, 2017 at 14:19 UTC as 47th comment
On article Throwback Thursday: the Nikon D700 (113 comments in total)
In reply to:

beavertown: Nikon had traumatized their loyal users for 10 years.

Seems quite a few loyalists were not buyers in the interim sticking with their D700's.

As a Sony shooter I can empathise with that. I held onto my lowly A100 as numerous later bodies were missing features I valued. They only fixed this with the A77. Now with the A77II some features have gone again, so the circle repeats itself and I have not upgraded.

You'd think manufacturers would learn not to make successors worse in some respects or leave gaps in the range. Canon just did the same sort of thing with the 6DII.

Link | Posted on Aug 24, 2017 at 14:18 UTC
In reply to:

Causio: Anyone who purchases one of these cameras would shoot raw and process the files on his/her own taste. Hence this comparison is pretty much pointless. It would make more sense for a phone, a compact or any casual shooter friendly mirrorless, not for the top pro gear.

You can tweak the jpeg colours and/or the default white balance of any of these cameras. If pro needs to shoot jpeg for speed he/she isn't going to sit around moaning the output is too warm or too cold. They will dial in a correction and shoot with that from then on.

Link | Posted on Aug 23, 2017 at 22:16 UTC
Total: 473, showing: 1 – 20
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