trungthu

Lives in Viet Nam Viet Nam
Joined on Jan 28, 2007

Comments

Total: 39, showing: 1 – 20
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On article Crossing the Bridge: Canon XC10 Review (258 comments in total)

""... Unlike the RX10 II/III and FZ1000, which are aimed at stills photographers, the XC10 does not support Raw image capture. Also, the XC10 is by far the most expensive of the three with a retail price of $2,499 (though street prices hover around $1,999)....""
I think, when Canon choose this price for this "camera", maybe he want to show the high grade of his technology, but not relates to the market place.
When almost all the producers turn the 4K to "popular" in cheaper camera, Canon in the opposite...
Maybe in nest year, the 6K will be popular, and the range of "still" and "motion" camera is disappear... I shoot in motion, and cut any frame to have a 20mp for a still...

Link | Posted on Apr 14, 2016 at 04:30 UTC as 15th comment
On article Ultra-compact: Sony Cyber-shot RX1R II review (546 comments in total)

Thanks for your reply.
But have you seen "the best quality" from this camera, or only "seen" through what the producer said?
Have you seen the MTF table of this lens on this camera?
And the "best quality" is very different from each one... relates to the their usage...

Link | Posted on Feb 17, 2016 at 07:42 UTC as 34th comment
On article Ultra-compact: Sony Cyber-shot RX1R II review (546 comments in total)
In reply to:

trungthu: I think with that specifications, the price should be around $2000.
If I want to have a pocket one, maybe I will choose Canon M3 with 22mm, f/2. More cheaper with the quality of image is also OK for almost popular photography need.
If I want to have a quality camera with more performances, I will choose A7R II with interchangeable lens...

Thanks for your reply.
But have you seen "the best quality" from this camera, or only "seen" through what the producer said?
Have you seen the MTF table of this lens on this camera?
And the "best quality" is very different from each one... relates to the their usage...

Link | Posted on Feb 17, 2016 at 07:36 UTC

I think this function is not useful (parallel control and Scheimpflug principle in tilt control).
The software do all of it in a very easy way.
So the price is not meaningful at this time.
With the professional photographers, maybe they will choose medium format back (also camera) to have more resolution.

Link | Posted on Feb 16, 2016 at 03:26 UTC as 3rd comment
On article Ultra-compact: Sony Cyber-shot RX1R II review (546 comments in total)

I think with that specifications, the price should be around $2000.
If I want to have a pocket one, maybe I will choose Canon M3 with 22mm, f/2. More cheaper with the quality of image is also OK for almost popular photography need.
If I want to have a quality camera with more performances, I will choose A7R II with interchangeable lens...

Link | Posted on Feb 16, 2016 at 02:58 UTC as 95th comment | 2 replies
On article RX aeternus? Sony Cyber-shot DSC-RX10 II review (270 comments in total)

"Equivalent aperture range", I think this is about the Depth Of Field only.
Not equivalent about LIGHT.
F2.8 = F2.8 (not = F7.6).

Link | Posted on Nov 1, 2015 at 08:05 UTC as 25th comment
In reply to:

trungthu: The price is too high with a new unknown brand...

I's so sorry, I've known this brand for the first time. Even I've taking photos in professional field from 1983.
Maybe I have a narrow eye. Thanks...

Link | Posted on Oct 22, 2015 at 06:33 UTC

The price is too high with a new unknown brand...

Link | Posted on Oct 21, 2015 at 06:03 UTC as 21st comment | 2 replies
On article Otus Readings: the Zeiss 85 F1.4 Otus Comparison (224 comments in total)

I imagine, if comparing in quality, why you don't use Canon 85mm f/1.2 (equal in quality and in price a little).
Use a cheap one to test to a very expensive lens from Zeiss... is it a good test?

Link | Posted on Jul 1, 2015 at 02:17 UTC as 15th comment

- If this lens has only 3 elements, I think there still are many aberrations in it.
- With f/2.8 and at the focal length 100mm, the price should be under USD 500, it can be sold...
- The bokeh is very impressive, if it only relates to the mechanic of the iris steel made, why almost all of Japanese Lenses do not have like this... and the price is very unreasonable.

Link | Posted on Jul 1, 2015 at 02:06 UTC as 9th comment
On article LG launches LG G Pro 2 phablet with 4k video (27 comments in total)

Very impressive. They all will bring 4K video to daily life users.
From Panasonic GH4, to LG G Pro 2... I like it.

Link | Posted on Feb 14, 2014 at 00:21 UTC as 4th comment

""" The outstanding 60x Optical Zoom allows photographers to capture more intimate shots and get closer to their subject, ensuring that images taken from afar retain impressive detail and accuracy.With the option to operate the zoom at double speed, or to go directly from zero to 60x zoom,..."

We should write: ... to go directly from 1x to 60x zoom...
Not from zero.

Link | Posted on Jan 8, 2014 at 13:07 UTC as 27th comment
On article Tamron to develop 150-600mm F5-6.3 ultra-telephoto zoom (193 comments in total)

How many stops does this lens can achieve in VC mode?

Link | Posted on Nov 8, 2013 at 04:23 UTC as 28th comment

It's only the technology in the sensor, when reducing the pixel dimension, the less light receiving, the more noise grow. And the worst of all is the resolution of the best lens of the present can not see the pixel.

Link | Posted on Sep 14, 2013 at 01:04 UTC as 6th comment
On article Panasonic GX7 First Impressions Review (1200 comments in total)
In reply to:

trungthu: Please show more: the lens used, the aperture, the distance from the camera to the object, focusing mode.
I think, in digital picture, beside the quality of the sensor (with the processing inside the camera), there also the quality of the lens (the resolution of the lens, the best aperture).

Thanks R Butler and Stu 5.
When testing the resolution of a camera, why don't we use "the best lens" at that situation, ie, the macro lens...
Thanks all of you, it's only my idea...

Link | Posted on Aug 16, 2013 at 02:35 UTC
On article Panasonic GX7 First Impressions Review (1200 comments in total)

Please show more: the lens used, the aperture, the distance from the camera to the object, focusing mode.
I think, in digital picture, beside the quality of the sensor (with the processing inside the camera), there also the quality of the lens (the resolution of the lens, the best aperture).

Link | Posted on Aug 15, 2013 at 02:26 UTC as 178th comment | 3 replies

It's a good news.
But I don't know if they can have a relation between the pixel dimension with the lens resolution? Or only making this to present the technologie more than the real usage.
The pixel see, the lens see, and after all, we see...
Thanks.

Link | Posted on Jun 12, 2013 at 01:32 UTC as 54th comment
In reply to:

trungthu: "... This means it has only one photosite per output pixel, so won't offer the same color resolution as Canon's EOS C300 professional video camera, which has four capture pixels (a Red, Green, Blue, Green quartet) per output pixel... "

I don't know how it can record color information in only one photosite. While almost all others use three color filter in four pixels (RGBG).
Please help me. Thanks.

Yes, I see.
Bayer filter use four capture pixels to record color informations.
""" .. This means it has only one photosite per output pixel, so won't offer the same color resolution as Canon's EOS C300...""" what does i mean?
Only one photosite per output pixel""" ???
Thanks Brian Lund for your respond.

Link | Posted on Mar 6, 2013 at 16:02 UTC

"... This means it has only one photosite per output pixel, so won't offer the same color resolution as Canon's EOS C300 professional video camera, which has four capture pixels (a Red, Green, Blue, Green quartet) per output pixel... "

I don't know how it can record color information in only one photosite. While almost all others use three color filter in four pixels (RGBG).
Please help me. Thanks.

Link | Posted on Mar 5, 2013 at 16:53 UTC as 25th comment | 4 replies
Total: 39, showing: 1 – 20
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