Filter issues, E. Puts

[lct]

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(Provence?)

Difficult to compare different lenses indeed.

Perhaps you could try the same lens with and w/o filter?

[jaapv]

OK so lets say that I am using manual WB as all are suggesting - then what happens when you changes lenses. Look at the tests below taken from my terrace this afternoon - BTW not for any artistic merit. It would seem that you would have to reset your manual WB with every lens change. I set manual WB using the 35 Biogon with 486 fitted. The one that amazes me is the colour balance on the 90mm Elmarit-M. It is totally different to the others. The 35mm Biogon still looks greenish to me even though that was the lens on which I set manual WB.

 

Wilson

 

I think I would have gotten similar differences on film.

[wlaidlaw]

(Provence?)

Difficult to compare different lenses indeed.

Perhaps you could try the same lens with and w/o filter?

 

 

LCT,

 

Provence? Yes the Haut Var looking towards Grand and Petit Bessillons. I have posted before with and without 486 filter. The 486 accentuates the green tinge on many JPEG's but it seems to me it is still there without the filter after 1.092 even with manual WB. Maybe it is a "featurette" of the 35mm Biogon. Certainly the colour balance of the 21mm Biogon seems better "out of the box". I really am going to have to get to grips with the batch processing on C1 LE and give up JPEG's.

 

Wilson

[wlaidlaw]

I think I would have gotten similar differences on film.

 

Jaap,

 

Do you really think so. My most recent film experience was with my Contax G2, where I had the 21mm and 28mm Biogons, the 35mm and 45mm Planars and the 90mm Sonnar. I often had films where I might have used all lenses on the same film. I was never aware of any colour balance change between those lenses. Contrast yes, colour no. The contrast on the 28mm Biogon and the 45mm Planar was noticeably higher than on the other lenses.

 

I know that on the M8, I am comparing lenses from three different manufacturers but the one I expected to be most different, the Zenitar fish-eye, is really quite similar to the 21 Biogon, which to my eye is the most like the real colour balance this afternoon. The Elmarit 90, although dramatic, is very false - far too pink. I wonder if there was a lot of IR being generated by the sunlight being dispersed though the haze. If so, that could explain the pink/magenta cast on the Elmarit.

 

I will try again tomorrow but this time as Jamie suggested, set the WB using the Elmarit. I am going to take photos of the egg festival at our village (even the boules for the Easter petanque competition are egg shaped) and I think I will take off the 486 filter and put up with magenta blacks.

 

Wilson

[jaapv]

Wilson,could you do some shots with a grey card in them? Lenses and lens coatings do make a lot of difference and I certainly tended to notice differences between Leica, CV and Zeiss lenses on slide film. If they were as dramatic as the series you posted I honestly cannot say. Anyway, you make a good case for shooting DNG's

[wlaidlaw]

Wilson,could you do some shots with a grey card in them? Lenses and lens coatings do make a lot of difference and I certainly tended to notice differences between Leica, CV and Zeiss lenses on slide film. If they were as dramatic as the series you posted I honestly cannot say. Anyway, you make a good case for shooting DNG's

 

Jaap,

 

I am a bit orthographic at my French house and only have black or white card. I am going to do some serious colour profiling with targets etc, once my replacement HP B9180 arrives. What slightly concerns me is that if the colour balance from differing lenses is so different, even though I run them through the same profile on C1 or ACR, the end result is going to have quite different colour balances on the usual computer programming basis GIGO (garbage in, garbage out).

 

AWB can work. when I went out to Australia last October, I bought a little Canon Ixus 850IS to use both in an underwater housing and for when I did not want to lug my big Sony R1 around. I was just looking again yesterday at the end results and I would say that the WB on 95%+ of the above water images is spot on. I would say it was getting it better than I was on the Sony, where I was using manual or chosen WB most of the time. I think manual is fine in a studio, with controlled and unchanging lighting conditions. Outside a really effective AWB is better.

 

Wilson