lensberg

lensberg

Joined on Jan 17, 2012

Comments

Total: 155, showing: 21 – 40
« First‹ Previous12345Next ›Last »
On DxOMark tests Canon EOS 70D sensor and lenses news story (133 comments in total)
In reply to:

CNY_AP: What I don't understand is that the Nikon 5200 for example is highly rated by DxoMark, but when I look at high ISO shots in the Comparometer tool, I think the various Canon 18MP sensors fare well against the Nikon (in terms of detail retention versus noise).

Better example - Nikon D3200 is very highly rated in DxoMark, but in the T5i review, it looks awful. The review says so, not just me:
http://www.imaging-resource.com/PRODS/canon-t5i/canon-t5iA.HTM

http://www.dxomark.com/index.php/Cameras/Camera-Sensor-Database/Nikon/D3200
http://www.dxomark.com/index.php/Cameras/Camera-Sensor-Database/Canon/EOS-700D

So I wonder if DxoMark doesn't measure sensor performance correctly (wrong methodology). For example, maybe Nikon simply blurs their images more, hiding noise, but losing detail.

Or maybe Canon has superior firmware/processing which overcomes/hides their sensors' inferiority. But in the end, if the images look the same, what does it matter.

And exactly how do they carry out this analysis of the demosaiced RAW files...? By applying their in-house reconstructive interpolation algorithms...? Or do they strip the sensor of its internal circuitry and scrutinize its SNR ratio through external amplification...?

Direct link | Posted on Sep 4, 2013 at 19:52 UTC
On DxOMark tests Canon EOS 70D sensor and lenses news story (133 comments in total)
In reply to:

lensberg: DXO might serve as the holly grail for the average Nikon fan... but their "supposed tests" hardly serve as any meaningful purpose in determining which camera / brand is the best from an overall performance point of view...

DXO's only real purpose seems to be that of a proxy for Nikon's marketing department... to give the average joe something "scientific" to go by... Plus they should add a camera quality score... something where Nikon's D600 / 800 would score abysmally... oil spots and dust galore...

Best method of determining which camera is best suited for you is to read a broad spectrum of reviews across the web to formulate your own nonbiased opinions... Or just walk into any camera store and get a first hand account for which body suits your best...

@ Shunda77 - The D5100 / D7000 may outclass Canon's previous generation 18 MP sensors - but there's no way that can be said for Canon's new 20 MP sensor...

Canons new dual pixel sensor is definitely on par with the Toshiba variant found in the D7100... and quite frankly it looks slightly cleaner at high ISO's in RAW... I'm not the only one saying it - camera review websites that have conducted initial tests are confirming it...

Granted Canon isn't as good as Nikon where dynamic range is concerned... but come on, the differences aren't anywhere nearly as drastic as earlier years...

@ Collie Camp - 5 years ago wasn't the D300 considered better than the Canon 50D ... Why would Nikonians have made a comment like mine...? Was there some underlying uncertainty that the D300 wasn't as good as claimed to be...?

Direct link | Posted on Sep 4, 2013 at 14:11 UTC
On DxOMark tests Canon EOS 70D sensor and lenses news story (133 comments in total)

DXO might serve as the holly grail for the average Nikon fan... but their "supposed tests" hardly serve as any meaningful purpose in determining which camera / brand is the best from an overall performance point of view...

DXO's only real purpose seems to be that of a proxy for Nikon's marketing department... to give the average joe something "scientific" to go by... Plus they should add a camera quality score... something where Nikon's D600 / 800 would score abysmally... oil spots and dust galore...

Best method of determining which camera is best suited for you is to read a broad spectrum of reviews across the web to formulate your own nonbiased opinions... Or just walk into any camera store and get a first hand account for which body suits your best...

Direct link | Posted on Sep 4, 2013 at 09:37 UTC as 19th comment | 8 replies
On Preview:canon-eos-70d (1333 comments in total)
In reply to:

igor_s: It seems that the 70D owners will have described everything before the review appears. Actually, 70D = 60D + on-chip PDAF, which is the only thing to investigate given the available sensor performance test results from DxOMark.

And what is the D7100 exactly... a refurbished D7000 + a Toshiba sensor - the OPLF...?

Since DXO seems to have been in a tearing hurry to demean the 70D ... why don't they at least provide conclusive samples or evidence of their testing to substantiate the random numbers they put forth... Just to add an ounce of credibility to their name...

Posted on Sep 3, 2013 at 09:20 UTC
On Preview:canon-eos-70d (1333 comments in total)
In reply to:

igor_s: Well, I think now everybody will admit that the 70D loses to D5x00 and D7x00 in SNR, the difference being, at my sight, 0.5 to 2/3 stops ISO. Is seems to be on par with 60D, which Canon predicted.The sales will depend on how useful its new AF system is.

I was actually comparing the RAW samples here on Dpreview, plus imaging resource & ephotozine - The later two especially show that the 70D has a clear advantage in high ISO image quality.

To be absolutely honest I don't fully trust the veracity of cameralabs samples... and this apples to numerous cameras across the board that Gordon reviews...

Posted on Aug 31, 2013 at 09:06 UTC
On Preview:canon-eos-70d (1333 comments in total)
In reply to:

igor_s: Well, I think now everybody will admit that the 70D loses to D5x00 and D7x00 in SNR, the difference being, at my sight, 0.5 to 2/3 stops ISO. Is seems to be on par with 60D, which Canon predicted.The sales will depend on how useful its new AF system is.

Something is seriously wrong with DXO's testing methodology... 5D III was cleaner than D800 at anything above ISO 1600 ... The 6D was cleaner than the D600 and now this... but they seem to always favor Nikon completely irrespective of real world results / usage...

The 70D easily looks as clean, if not cleaner at high iso's compared to the D7100 - scrutinizing RAW & JPEG's side by side...

If you or DXO can honestly state that the 70D is "noisier" than the D7100 than there is either something wrong with your eyes or mine...

Alas wish there was some other alternate sensor testing website to at least provide us with a second unbiased opinion...

Posted on Aug 30, 2013 at 21:00 UTC
On Preview:canon-eos-70d (1333 comments in total)

A hypothetical argument... I wonder how much DXO will score this new Canon sensor...

I'm guessing about...

Color Depth - 23.6 bits
Dynamic Range - somewhere between 12.5 - 13 evs
Low-Light ISO - 1150

All scores lower than the D7100... since traditionally according to them, they never mark Canon higher than their Nikon counterparts... Wonder if I'll be proven wrong...

Posted on Aug 15, 2013 at 10:44 UTC as 273rd comment | 3 replies
On Panasonic Lumix DMC-FZ70 Sample Images news story (69 comments in total)

Quite frankly the image quality is one step short of horrible... even a point & shoot like Sony's WX 60 / 80 which utilizes a 16 MP sensor is miles ahead in terms of IQ and noise control...

Direct link | Posted on Aug 14, 2013 at 10:21 UTC as 19th comment | 1 reply
On Preview:canon-eos-70d (1333 comments in total)
In reply to:

Frank_NZ: Like to throw in an unofficial competition for supporters of this site. No prizes to be awarded but here it is for your thoughts.

What do you think the final rating from dp review will be for the Canon 70D ?

For the record, my guess is 87%.

I do not know any of the staff or reviewers of this website so do not expect to be as close as some of you out there. Closing date for entries soon. Good luck.

Probably 85% ... after all everyone, wants to keep it competitive with its arch enemy the D7100 ... :)

Posted on Aug 14, 2013 at 10:18 UTC
On Preview:canon-eos-70d (1333 comments in total)

Looks as good as the D7100... perhaps even slightly better in RAW... a contentious point nevertheless...

I guess it depends upon each individuals personal preferences to noise reduction... As is the usual story... Canon's image is cleaner... albeit slightly softer... Nikon's approach is grittier / noisier giving the semblance of slightly better detail retention... but these differences are mostly visible from ISO 6400 onwards... which should pretty much be your limit when using an APS-C sensor...

Posted on Aug 7, 2013 at 09:16 UTC as 334th comment | 1 reply
On Just posted: Nikon D5200 in-depth review news story (233 comments in total)

Considering they share the same sensor & processor... why does the D7100 score slightly more than the D5200 in DPR's conclusion - category - RAW image quality...?

Direct link | Posted on May 22, 2013 at 14:54 UTC as 10th comment | 2 replies
In reply to:

RichRMA: Looking at the high ISO samples and test images, it's clear that 24MP is pretty much the limit for an APS sensor. They should probably stop at this point and wait for the technology to catch up a bit.

The Canon 7D may be the company's flagship APS-C camera... but the fact still remains that its 4 years old... One could argue that its almost 2 generations old... so making a comparison with Nikon's latest & greatest camera is not at all a fair comparison...

Wait till the 7D Mark II is out... probably sporting a 24 MP 1.5 crop factor chip... then we'll see just how "good" the D7100 really is...

Direct link | Posted on Mar 26, 2013 at 08:59 UTC
On Nikon CoolPix P330 Preview preview (89 comments in total)
In reply to:

Zalan: Could be my next purchase, I hope there will be a complete review soon :)

Unless 4 second delays between the P7700's RAW capture amounts to excellence...

Canon has always been miles ahead in the lucrative compact camera arena... and i doubt this trend is likely to change anytime in the near future...

It may marginally be ahead in certain areas... but can it beat the S110 for image quality...? The G15 was always superior to the P7700 for pure IQ... in both RAW & JPEG

Direct link | Posted on Mar 8, 2013 at 14:16 UTC
On Just posted: Canon EF 24-70mm f/2.8L II USM lens review news story (161 comments in total)
In reply to:

Earthlight: It is a world class lens.

Now they only need a sensor to match. :)

One would imagine that Nikon's AF-S Nikkor 24-70mm is any better... in fact the Canon edges ahead in centre & corner sharpness...

Direct link | Posted on Mar 8, 2013 at 13:56 UTC
In reply to:

jackpro: Very good high iso result trounces canon big time nice

If you mean that miniscule high ISO advantage actually amounts to "trouncing" ... then obviously our definitions deviate...

Its funny the way you're comparing a 2013 sensor to a 2009 one... Just considering the fact that they can actually compete against each other with the D5200 barely getting the better, speaks volumes about Canon's imaging prowess...

One would only notice these fractionally cleaner results at around ISO 12800... at which point you'd soon come to the realization that an APS-C camera, no matter how good, is not going to be providing you with an acceptable level of image quality ...

Direct link | Posted on Feb 19, 2013 at 09:07 UTC
On Just Posted: Canon EOS 6D In-depth Review news story (530 comments in total)

This nagging perception that Canon sensors are in anyway inferior to their Sony / Nikon counterparts exists only in theory... and is primarily propagated by DXO...

Despite the extravagant ratings that DXO awards Sony sensors... the reality is that Sony camera's doen't even come close to touching Canons image quality... in both RAW & JPEG...

Isn't it miraculous with Toshiba's foray into sensor development... Nikon manages to catapult that maiden sensor to take the top spot amongst DXO's APS-C sensors... considering the fact that noise is eating away at detail beyond ISO 3200... talk about bias...

The 6D is an outstanding camera as far as pure IQ goes... The level of captured / retained detail in anything from 12800 and above is simply awe inspiring... Personally i'd rather have better noise control compared to better dynamic range... Nikon in true fashion try to give you the best of both worlds - a jack of all trades... Canon on the other hand is the master of noise control...

Direct link | Posted on Feb 16, 2013 at 08:43 UTC as 40th comment | 10 replies
On Nikon D5200 added to our studio comparison database news story (186 comments in total)

I bet the Fujifilm X-Pro 1 would have achieved the best overall scores... thats probably the reason why DXO never got around to actually reviewing that particular camera...

DXO seems to fabricate a bunch of numbers and then allocate them accordingly... One would image they're the gospel of truth as far as sensor testing goes... At least most other camera review websites provide studio or real world samples to compare side by side whilst formulating a final score...

Direct link | Posted on Feb 11, 2013 at 09:30 UTC as 8th comment | 2 replies
On Nikon D5200 added to our studio comparison database news story (186 comments in total)
In reply to:

gl2k: Today it's not about the sensor, it's all about the body that makes the difference. Dunno about DR but regarding noise the 5200 plays in the same league as the D800.

Considering the D800's photosites are eminently larger than those from the D5200... it really doesn't speak very highly of the D800's overall noise performance...

The D5200 is a good noise performer... but nothing class leading as such... Its more like a systematic evolution of more MP / refinement of algorithms... rather than anything revolutionary...

Quite frankly theres very little if any difference between the D5200, T4i & D5100 in terms of noise...

Direct link | Posted on Feb 9, 2013 at 09:13 UTC
On Just Posted: Nikon Coolpix S800c Review news story (79 comments in total)

If people are considering a quality point & shoot camera they should look no further than the Canon Elph 330 HS... small and extremely pocketable... with a great 10x lens... pretty much the same level of outstanding image quality as the SX50 HS ... Which are pretty much the only 1/2.3-inch sensor cameras that give you excellent ISO 1600 - 3200 images

Forget inbuilt Android... simply wi-fi the images over to your android based phone and the world is your oyster...

Direct link | Posted on Feb 6, 2013 at 10:53 UTC as 4th comment
On Fujifilm announces WiFi-enabled F900EXR with EXR-CMOS II news story (43 comments in total)

Fuji point & shoot camera's are no good... larger than average sensor, "EXR" etc... they still can't deliver on image quality...

Stick with Canon or Panasonic if quality matters...

Direct link | Posted on Jan 30, 2013 at 09:32 UTC as 7th comment | 4 replies
Total: 155, showing: 21 – 40
« First‹ Previous12345Next ›Last »