IQ3-100 trichromatic vs IQ4-150 colors?

[BernardLanguillier]

Hi team,

What is the current opinion about the colors of the IQ3-100 trichromatic vs IQ4-150?
- skin tones
- landscape colors

Thank you.

Regards,
Bernard

[Gerd_Peters]

My trichromatic had very clean and smooth colors. Which is why I specifically ordered the IQ4 100. Only Phase One could not deliver at that time, which is why I switched to IQ4 150. The IQ4 150 has almost no colorcast when moving lenses. Personally, I found the colors and smoothness a little better with the trichromatic.

I can't say much about skin tones in particular, I only photograph products.

Greetings Gerd

[BernardLanguillier]

Thanks a lot Ger.

I guess that the filtering used on the trichromatic backs is too thick not to generate some color cast with lenses movement. This may be why they decided to go without it on the IQ4–150.

It will be interesting to see what they come up with for the IQ5. Although I am not aware of any new Sony part at this point

Cheers,
Bernard

[MN]

It will be interesting to see what they come up with for the IQ5.

Let's hope that there will be a IQ5!

Wonder how the Fujifilm GFX 100 is affecting P1.

Addendum:
P1 classifies with the IQ label the device generation and not the sensor.
For example, the IQ4 Tricolor has the sensor of the IQ3 Tricolor but the digital back of the IQ4

[BernardLanguillier]

Let's hope that there will be a IQ5!

Wonder how the Fujifilm GFX 100 is affecting P1.

I currently work with Nikon, Fuji GFX-100 and H6D-100c (probably soon to change to a P1 camera) and I find that although I was hoping the Fuji to be the one camera I can use for everything, the contrary is happening.

If I want quick and compact, the Nikon Z7 is an amazing performer with out of this word glass,
If I can handle slow and heavy, I tend to use the H6D-100c

So in the end, the Fuji is probably the camera I use least.

Cheers,
Bernard

[Gerd_Peters]

Thanks a lot Ger.

I guess that the filtering used on the trichromatic backs is too thick not to generate some color cast with lenses movement. This may be why they decided to go without it on the IQ4–150......

IQ3 100 had a stronger colocast than IQ3 100 Trichromatic. With an LCC plate, I was able to get things under control in most cases. The trichromatic was purer in color - sounds strange, doesn't it?

Example: Red object on a white surface. Of course, the white surface is contaminated by the reflected light from the red object - slightly red. The same goes for the shadows. With the Trichromatic was this contamination / crosstalk? much lower. That makes a big difference in further processing. That's why I write purer colors - I can't think of a better term.

IQ4 150 is not that good in this regard. That will also be the reason why the IQ4 100 Trichromatic is still available.

It will be interesting to see what they come up with for the IQ5. Although I am not aware of any new Sony part at this point

Cheers,
Bernard

I hope P1 removes the IQ4 errors first, before they think of IQ5 ...

Greetings Gerd

[MN]

I currently work with Nikon, Fuji GFX-100 and H6D-100c (probably soon to change to a P1 camera) and I find that although I was hoping the Fuji to be the one camera I can use for everything, the contrary is happening.

If I want quick and compact, the Nikon Z7 is an amazing performer with out of this word glass,
If I can handle slow and heavy, I tend to use the H6D-100c

So in the end, the Fuji is probably the camera I use least.

Cheers,
Bernard

Any device is a compromise, and sometimes even the best compromise is too much of a compromise.

[ErikKaffehr]

Thanks for sharing!

When you use the H6D-100c, how do you focus?

Best regards
Erik

I currently work with Nikon, Fuji GFX-100 and H6D-100c (probably soon to change to a P1 camera) and I find that although I was hoping the Fuji to be the one camera I can use for everything, the contrary is happening.

If I want quick and compact, the Nikon Z7 is an amazing performer with out of this word glass,
If I can handle slow and heavy, I tend to use the H6D-100c

So in the end, the Fuji is probably the camera I use least.

Cheers,
Bernard

[BernardLanguillier]

When you use the H6D-100c, how do you focus?

Hi Erik,

Either with AF handheld in the rare cases when I use it as a street camera.

Most often using live view at 100%.

Cheers,
Bernard

[ErikKaffehr]

Thanks!

I would think that 100% LV is the best way to focus.

Best regards
Erik

Hi Erik,

Either with AF handheld in the rare cases when I use it as a street camera.

Most often using live view at 100%.

Cheers,
Bernard

[ErikKaffehr]

Hi Bernard,

The reason the 150 MP back doesn't have color cast is that it is backside illuminated, so the CFA is very close to the photodiodes. Quite possible that Sony also played some other trick.

Best regards
Erik

Thanks a lot Ger.

I guess that the filtering used on the trichromatic backs is too thick not to generate some color cast with lenses movement. This may be why they decided to go without it on the IQ4–150.

It will be interesting to see what they come up with for the IQ5. Although I am not aware of any new Sony part at this point

Cheers,
Bernard

[TechTalk]

There are a series of articles that compare color from the "trichromatic" to standard backs here...

https://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-i/

https://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-ii/

https://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-iii/

[LargeSense]

Thanks for the links. I have always wondered what the trichromatic really is. I read a lot when it was discussed a while back. A lot that I have read doesn't make sense.

So it appears to be a CFA and or cover glass change that gives purer colors at expense of accuracy.

Bill