chiron wrote:
Beautiful image showing great rendering (to my eyes) for the 90. What post-processing did you do on this one?
Thank you so much.
LR - Cobalt Fuji GFX100 Pro Neg Hi - Very slight WB to warmer - Adjustment brush on rose pods with slight exposure and contrast bump.
matsu131 wrote:
Thank you so much.
LR - Cobalt Fuji GFX100 Pro Neg Hi - Very slight WB to warmer - Adjustment brush on rose pods with slight exposure and contrast bump.
Loving this little 90.
Delicately done! Lovely image.
Would you be able to post the image with only adjustments to global exposure and global contrast with no adjustment brush and no white balance adjustment and also with no application of Cobalt? Just the image with minimum processing for global exposure and contrast?
I think that would be very helpful in seeing the rendering of the lens in its "pure" state. It would also be very instructive about what skillful post-processing can do to change an image. And finally it would also be a very informative comparison of before-and-after images with and without Cobalt.
Hope you can do this! My 90mm just arrived yesterday and I am just beginning to evaluate it, especially for rendering. Your picture helps a lot. Thank you in advance.
matsu131 wrote:
Surely.
SOOC RAW Adobe color profile - just resized.
Thank you for this. While your finished, post-processed, and more emphatic version is possibly more emotive and powerful, the unprocessed version is also very beautiful in an open, expansive way and does make clear (at least to my eyes) that the Sigma 90/2.8 i renders beautifully (at least from up close) and that it provides a beautiful platform for finishing an image. Compared to the finished image, this also make clear what nice, subtle work can be done with the adjustment brush. But I actually like both versions very much and I wouldn't want to choose between them.
In addition to my Tamron 35-150 2-2.8, I also received the Sigma 65 F2 today. (Slightly cropped) It‘s sharp enough to tell me that I have to remove dust again
Finally buckled and traded the Voigtlander 40 for the Sigma 35/2.
I rarely shot the Voigt wide open as my MF skills are lacking (certainly worse than AF anyway).
Fred Miranda wrote:
Today I tried the Sigma USB Dock to tweak focus with a couple DG DN lenses in L-mount and it worked great.
By default focus throw is set to 'Long' and that's why it takes a lot of rotation to nail focus with I series DG DN primes.
Aside from letting you update the lens firmware, which I believe can be done without it, the dock allows one to tweak focus throw from Long to Standard or Short.
I set the 24/3.5 and 45/2.8 to "short" and it works so much better now.
Sigma should offer Sigma USB Dock compatibility to the DG DN E-mount lenses as well. This is a game changer for those who enjoy manual focusing....Show more →
Arty73 wrote:
Due to the long focus throw on my e mount A7III it is difficult to estimate which way I should turn to focus, is this different if the lens software is adjusted to "short"?
Fred:
Changing the setting from long to "short" was a game changer for me as I am actually enjoying manual focusing the Series I lenses now. It's easier to focus for sure on the 24 and 35i lenses. Problem is that this can't be tweaked for the Sony, since the dock is not compatible with the E-mount version lenses for whatever reason.
Arty73:
Recently contacted Sigma Japan about the manual settings of the I series lenses, the question was whether the e mount lenses can also be adjusted to short focus throws instead of just long ones. Sigma's response:
Sigma
Your question and request are perfectly understandable. However, at this point, we don't have a clear plan/schedule to develop a software that can control the focus throw of our Sony E-mount lenses.
We would also need the Sony E-mount version of USB Dock to tweak the focus throw. However, at this point, we are not planning to make that.
But, I agree. This feature would be very useful for a lot of Sony users. At least, I will forward your message to our Product Planning Department, and they will study the possibilities.
We are so sorry we cannot be of any help to you on this matter. We would appreciate your understanding on it.
Arty73
Thank you very much for your response.
We are sorry to hear that it is not possible to adapt to Sony cameras. I've been thinking about the following, would it be possible to swap the lens mount from the sony with a lens mount from an L mount and then adjust the software in the lens via a dock and then mount the sony E mount again?
Sigma
Would it be possible to swap the lens mount from the sony with a lens mount from an L mount and then adjust the software in the lens via a dock and then mount the sony E mount again?
Unfortunately, this is not possible. If you convert the mount of the L-mount lens to Sony E-mount, the focus throw setting of the lens is cancelled and invalidated. This is because "the focus throw setting" feature is only for L-mount lenses, not for Sony E-mount. The setting cannot exist in Sony E-mount lenses.
Oké, Unfortunately for now, but I am happy with Sigma's explanation, clear and transparent.
So, is focus throw not something "just" built into the lens but that also works with the camera - something the L-Mount alloiance cameras have built into body software and Sony's do not? If so that would be an interesting development out of the L-mount alliance, agreement on in-body programing for lens features as opposed to just a unity on the mount.
