Reputation from Blancblue

Blancblue reacted to Django in Canon EOS R5 overheating vs Panasonic S1H and Sigma Fp designs July 14, 2020

The Sigma FP is a 8-bit only internal recording camera, has no 4K60p, no PDAF and Sigma just confirmed it can’t even record LOG due to « design limitations ».

It’s a very powerful camera in relation to its minuscule size and surely an ingenious passive cooling design, but thermal issues remain and are surely the cause of such limitations.

The S1H, despite an active cooling system and body almost twice the size/weight can only do 4K60p with a S35 crop. No PDAF either on that camera.
Canon chose to unlock superior specs at the risk of overheating, which I understand is a polarizing decision, however I’m not sure there is a strong case to be made against its thermal balance giving the power it unleashed compared to those two cameras with a passive cooling system.
Sony however, if the spec rumors are true may be on such a breakthrough..

Blancblue got a reaction from Mako Sports in Canon EOS RP specs leaked, features 26MP sensor and 4K video February 12, 2019

Awesome Page. There are some very interessting facts, which explain the Canon / Sony Color Discussion:

A7III:
Color reproduction by the Sony Alpha 7 Mark III is accurate, with only one color showing a strong deviation from the original. ∆E ranges from 8.9 at ISO100, to a small range between 9.7 and 10.0 at ISO400 to ISO 1600.

Photo: The automatic white balance implemented by the Alpha 7 Mark III is excellent, with values between 0.0 and 0.2 at all ISOs measured between ISO100 and ISO25600.
Video: Automatic white balance is not excellent, with scores of 1.5 (low ISO) and 1.4 (high ISO).

Just for the record - DR:

Photo: The dynamic range exhibited by the Alpha 7 Mark III is very good: over 10.1 f-stops (up to 10.3) at all ISOs tested between ISO100 to ISO800. Dynamic range remains high as ISO increases (9.8 f-stops at ISO1600) up to ISO6400 (9.2 f-stops). However, once again, ISO12800 shows poorer results, with a drop of nearly a full f-stop to 8.3. The extended ISOs are even worse: for example, 6.9 f-stops at Hi1.

Video - Dynamic range is good: 9.0 f-stops at low ISO and 8.0 at high ISO.

EOS R:
Color reproduction is good, with only 6 colors deviating strongly, five of which are reds. ∆E is consistent and ranges from 10.3 to 10.6 at all ISOs tested.
Photo: Automatic white balance is very good, ranging between 0.3 and 0.6 at all ISO s tested from ISO 100 to ISO 12800.

Video: Automatic white balance is decent at high ISO (0.7) but poor at low ISO (1.2). Color reproduction is nearly as good as in still images, with a ∆E of 11.7 at both high and low ISO .

Just for the record - DR:
Photo: Maximum dynamic range: 14.1 f-stops measured at ISO 800. Dynamic range is more than 10 f-stops at all ISO s from ISO 100 up through ISO 3200. At ISO 100, dynamic range is measured at 10.9 f-stops, at ISO 400 12.9, and at ISO 1600, 11.0. Dynamic range is poorer at the higher ISO s, with a minimum tested among the native ISO s, or 7.9 f-stops at ISO 25600.

Video: Dynamic range is good in video (9.7 and 9.0 f-stops for low and high ISO , respectively). Automatic white balance is decent at high ISO (0.7) but poor at low ISO (1.2). Color reproduction is nearly as good as in still images, with a ∆E of 11.7 at both high and low ISO.

Conclusion:

Color Reproduction and Color "Beautyness" are two different shoes. And Auto White Balance makes a different, too. Imho, the 5 deviating reds and the better AWB is the key, why a lot of people might prefer canon colors over sony - in terms of video.

Blancblue got a reaction from Tiago Rosa-Rosso in Canon EOS RP specs leaked, features 26MP sensor and 4K video February 11, 2019

Awesome Page. There are some very interessting facts, which explain the Canon / Sony Color Discussion:

A7III:
Color reproduction by the Sony Alpha 7 Mark III is accurate, with only one color showing a strong deviation from the original. ∆E ranges from 8.9 at ISO100, to a small range between 9.7 and 10.0 at ISO400 to ISO 1600.

Photo: The automatic white balance implemented by the Alpha 7 Mark III is excellent, with values between 0.0 and 0.2 at all ISOs measured between ISO100 and ISO25600.
Video: Automatic white balance is not excellent, with scores of 1.5 (low ISO) and 1.4 (high ISO).

Just for the record - DR:

Photo: The dynamic range exhibited by the Alpha 7 Mark III is very good: over 10.1 f-stops (up to 10.3) at all ISOs tested between ISO100 to ISO800. Dynamic range remains high as ISO increases (9.8 f-stops at ISO1600) up to ISO6400 (9.2 f-stops). However, once again, ISO12800 shows poorer results, with a drop of nearly a full f-stop to 8.3. The extended ISOs are even worse: for example, 6.9 f-stops at Hi1.

Video - Dynamic range is good: 9.0 f-stops at low ISO and 8.0 at high ISO.

EOS R:
Color reproduction is good, with only 6 colors deviating strongly, five of which are reds. ∆E is consistent and ranges from 10.3 to 10.6 at all ISOs tested.
Photo: Automatic white balance is very good, ranging between 0.3 and 0.6 at all ISO s tested from ISO 100 to ISO 12800.

Video: Automatic white balance is decent at high ISO (0.7) but poor at low ISO (1.2). Color reproduction is nearly as good as in still images, with a ∆E of 11.7 at both high and low ISO .

Just for the record - DR:
Photo: Maximum dynamic range: 14.1 f-stops measured at ISO 800. Dynamic range is more than 10 f-stops at all ISO s from ISO 100 up through ISO 3200. At ISO 100, dynamic range is measured at 10.9 f-stops, at ISO 400 12.9, and at ISO 1600, 11.0. Dynamic range is poorer at the higher ISO s, with a minimum tested among the native ISO s, or 7.9 f-stops at ISO 25600.

Video: Dynamic range is good in video (9.7 and 9.0 f-stops for low and high ISO , respectively). Automatic white balance is decent at high ISO (0.7) but poor at low ISO (1.2). Color reproduction is nearly as good as in still images, with a ∆E of 11.7 at both high and low ISO.

Conclusion:

Color Reproduction and Color "Beautyness" are two different shoes. And Auto White Balance makes a different, too. Imho, the 5 deviating reds and the better AWB is the key, why a lot of people might prefer canon colors over sony - in terms of video.

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