Rouseabout

Lives in Australia Australia
Joined on Dec 16, 2011

Comments

Total: 125, showing: 1 – 20
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On article The whole nine yards: Canon 35mm F1.4L II USM review (227 comments in total)
In reply to:

quiquae: >There are abbreviated depth-of-field markings set against the focusing scale, applying to full-frame cameras (they're not accurate for APS-C format cameras, as sensor size affects DoF).

I can't believe a DPR reviewer, of all people, is making such a stupid mistake. The DoF is exactly the same at any given focal length and physical aperture, regardless of the size of the sensor.

Do this thought experiment: a 20Mpix APS-C sensor should be optically exactly the same as a 51Mpix full frame sensor with outer edges taped over. Taping over the outer edges of the sensor, in turn, should be optically exactly the same as just cropping the image in post-processing. Does cropping an image in Lightroom change its DoF? No, right?

What APS-C does give you is deeper DoF than full frame given same aperture and ANGLE OF VIEW, not focal length. A 35mm f/1.4 lens on Canon APS-C has the same angle of view and DoF as a 56mm f/2 lens on full frame, for example.

Ok.
-Focal length
-Aperture
-Distance
-sensor size to Circle of Confusion (CoC) Ratio

Got it!

Link | Posted on Dec 2, 2016 at 11:02 UTC
On article The whole nine yards: Canon 35mm F1.4L II USM review (227 comments in total)
In reply to:

quiquae: >There are abbreviated depth-of-field markings set against the focusing scale, applying to full-frame cameras (they're not accurate for APS-C format cameras, as sensor size affects DoF).

I can't believe a DPR reviewer, of all people, is making such a stupid mistake. The DoF is exactly the same at any given focal length and physical aperture, regardless of the size of the sensor.

Do this thought experiment: a 20Mpix APS-C sensor should be optically exactly the same as a 51Mpix full frame sensor with outer edges taped over. Taping over the outer edges of the sensor, in turn, should be optically exactly the same as just cropping the image in post-processing. Does cropping an image in Lightroom change its DoF? No, right?

What APS-C does give you is deeper DoF than full frame given same aperture and ANGLE OF VIEW, not focal length. A 35mm f/1.4 lens on Canon APS-C has the same angle of view and DoF as a 56mm f/2 lens on full frame, for example.

Like Quiquae my understanding is that only focal length and aperture effect depth of field, while sensor size effects only the area of light fall recorded. Can DpReview clarify this as there appears to be some disagreement

Link | Posted on Dec 2, 2016 at 10:19 UTC
On article Spoilt for choice: which Sony RX100 is right for you? (304 comments in total)

Will the next brand exclusive roundup be for Panasonic?

Link | Posted on Nov 13, 2016 at 21:45 UTC as 87th comment | 1 reply

12.5% is barely noticeable, I wonder what their benchmark is

Link | Posted on Nov 11, 2016 at 09:48 UTC as 4th comment | 1 reply
On article 2016 Roundup: Interchangeable Lens Cameras $900-1200 (347 comments in total)
In reply to:

jkgal: Gosh, has a Canon EOS ever featured atop these rankings?
If I didn't know better I'd say dpreview are trying to get us to switch systems

I'm a canon user that doesn't like Sonys disregard for user experience. I think they are being fair

Link | Posted on Nov 11, 2016 at 09:39 UTC
On article 2016 Roundup: Interchangeable Lens Cameras $900-1200 (347 comments in total)

Dpreview your comments on user experience are very much appreciated.

Link | Posted on Nov 10, 2016 at 22:29 UTC as 29th comment
On article 2016 Roundup: Interchangeable Lens Cameras $500-900 (334 comments in total)
In reply to:

CaPi: Where might one find the Panasonic G85/G80..? Gold Medal and all.. ;)

Are some others such as the M5, a6500 or x-a3 likely to make it into this years round ups? It's good to hear your opinions. Thanks in advance.

Link | Posted on Nov 9, 2016 at 21:10 UTC
In reply to:

Rishi Sanyal: Does anyone know if you can *send* video to this thing over the mini Displayport connection? Or is that only video *out*? TIA.

I can use my iPad as an external monitor/touch screen. I'm sure there'll be a workaround app for this in no time

Link | Posted on Oct 28, 2016 at 20:12 UTC
In reply to:

Momamy: I use my surfacebook to run photoshop. I already pre ordered the surface studio. I think its going to be a great asset to photographers.

Momamy, this is your only activity ever on dpr. Plant maybe?

Link | Posted on Oct 28, 2016 at 20:06 UTC
In reply to:

Terry Breedlove: I want a large screen sitting at a comfortable distance and height in front of me. I don't want finger prints all over it. Oh wait I have a 27" iMac that fits perfectly and runs Photoshop just fine. Kind of nice because I can sit back drink my coffee and look at my photo in comfort. Then go back to work adjusting the curves etc to my liking.

I don't need a bird lens. so what? No one cares! Why do some people feel the need to tell the world something isn't useful for them?

Link | Posted on Oct 27, 2016 at 15:10 UTC
On article Video: Photokina 2016 wrap-up (152 comments in total)
In reply to:

princecody: Does the high res mode on the EM1 M2 have FF DOF?

Yawn.....

Link | Posted on Sep 27, 2016 at 22:14 UTC
On article Photokina 2016: Hands-on with Olympus OM-D E-M1 II (657 comments in total)
In reply to:

susan2012: How much smaller is this camera than something like a Sony A7 with 50 mm F1.8 lens?

It seems like neither the body is significantly smaller nor the lens since the smaller sensor requires larger aperture for same subject isolation/DoF.

Anyone have a comparison of the actual size?

Of course! it's common sense. A body has to be big enough to be ergonomic and the lens is like a bucket collecting light. If the bucket is a different size it won't collect the same light. I know it's an over simplification, but the essence is right. Small sensor cameras are not about gaining greater DOF they have other benefits. The truth is everything has trade offs

Link | Posted on Sep 23, 2016 at 09:52 UTC
On article Photokina 2016: Canon EOS M5 quick look video (262 comments in total)
In reply to:

Paul B Jones: Glad that Mr. Britton was able to conceal his disappointment, rise to occasion, and conduct a great little interview.

:)

Love all these DPR videos.

In fairness if I interpreted the article right. The big disappointment is effectively the M3 wasn't the M5.

Link | Posted on Sep 22, 2016 at 14:40 UTC
On article Photokina 2016: Canon EOS M5 quick look video (262 comments in total)
In reply to:

ObelixCMM: With new DIGIC 7 processor, why did they restrict video quality of M5 to 35 Mbps compared to 80D's 90 Mbps with older DIGIC6 processor?

If what Obelix said is true I'd also like to know the answer

Link | Posted on Sep 22, 2016 at 14:34 UTC
In reply to:

eazizisaid: Admirable !

Bravo to Fujifilm, Sony, Olympus, Leica & Hasselblad ! The clear leaders of tomorrow camera market !!

Pentax is leading mirrorless!

Link | Posted on Sep 21, 2016 at 14:43 UTC
On article Photokina 2016: Hands-on with Sony a99 II (441 comments in total)
In reply to:

CameraLabTester: Consumer: "This is the camera of my dreams!"

Canon & Nikon: "This is the camera of our nightmares!"

.

People Who aren't photo tech geeks "Sony makes cameras?"

Link | Posted on Sep 20, 2016 at 11:31 UTC
In reply to:

King of Song: I agree that it doesn't look as good as the new Hasselblad X1D, but it may very well be the superior camera?

For me personally, I care far more about the images my camera gives me, rather than the image my camera gives me. I'd rather show off my photography, than show off my camera.

One looks pretty, the other a trade tool

Link | Posted on Sep 20, 2016 at 11:11 UTC

Fuji and Hasselblad making Leica SL look silly

Link | Posted on Sep 20, 2016 at 11:08 UTC as 143rd comment | 8 replies
On article Photokina 2016: Hands-on with Sony a99 II (441 comments in total)

The new menu is the most interesting feature. If they fix it across the camera range I might take their products more seriously

Link | Posted on Sep 20, 2016 at 10:36 UTC as 79th comment | 4 replies

Will it post my selfies to Facebook?

Link | Posted on Sep 20, 2016 at 08:12 UTC as 34th comment | 1 reply
Total: 125, showing: 1 – 20
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