My understanding is that the combining of multiple shots by the software has the added side effect of essentially halving the ISO for each additional shot. I forget where I read that. Might have been from Fred himself.
So at 16 or more shots, even with ISOs around 6400, you're getting an effective ISO of 100.
charles.K wrote:
I was experimenting this evening with the SR app in Custom mode with 128 shots RAW for low light high ISO shots.
I was using a still flower arrangement from earlier with the A7rII and GM 85 @ f/1.4 and 6400 ISO. The room had no light just lighting ambient in other rooms. With PP'ing I could not see any noise in Lr. What I did find unusual was how the WB was behaving quite differently.
I´ve been evaluating for some time whether I should get a Summicron 50, especially after seeing all the marvellous photos taken by Charles with his version 4 of this lens. The other day I was in London, and I paid a visit to Red Dot Cameras (highly recommended), as I knew they had both the v4 and v5 in stock. I tried them on, was instantly impressed, but I also asked if they had the corresponding R version. And when I used the R version, I actually liked the handling a bit better. Yes, its considerably larger, but the focus throw is longer, with a tad more resistance to it. Moreover, with the price being about a third, the choice was easy. The R version it was!
Today I had my first shot with the lens, and obviously more testing is necessary in the coming weeks before i make up my mind. But first impression is very good. This picture is pretty much straight out of camera - i reduced the contrast slightly, and increased shadows and vibrance a tad.
Ole...fantastic portrait! The Summicron 50's are awesome. Even the R,as evidenced above! The only thing about the R I didn't like was 6 blade aperture. And the v4-5 in M mount are really incredible. I wish Mandler was still here designing lenses!!
Ole, both Summicron-M 50 IV and Summicron-R 50 E55 are [almost] identical Walter Mandler's designs and according to Erwin Puts nearly indistinguishable. I still use Cron-R 50 on film camera, and I love its look.
Enjoy the lens and please share your new images.
Thank you Gregg, LZ, Ronny and others for comments and likes!!!
Last set from yesterday's visit to Iona Beach in Richmond, BC
AGeoJO wrote:
So, less noise or practically no noise even at ISO 6400, huh? Interesting! Are the colors more vivid? I found that to be the case only using some 16 shots in the image I posted above. Beautiful flower arrangement, Charles!
Thanks Joshua There is no noise at ISO 6400 at 128 shots RAW in Custom mode. The colors are not necessarily more vivid, but the depth and ability to push them in RAW is amazing. It is almost feels like medium format film but without the issues of noise. I would use this app solely for the richness in color and tonality. Any normal shots in darkness at ISO 6400 would have fallen apart.
jojomon11 wrote:
^^ Pretty awesome Charles! Love the tonality of the flowers
Phil
Thank you Phil It is fall off in tonality, and colors that I love about this app. I suspect we will be seeing a lot more of this SR app, and maybe further applications of this style of photography.
Thanks Gregg
Awesome shots Ronnie
Rene, love those street compositions.
Jako, excellent shots!
puckman wrote:
My understanding is that the combining of multiple shots by the software has the added side effect of essentially halving the ISO for each additional shot. I forget where I read that. Might have been from Fred himself.
So at 16 or more shots, even with ISOs around 6400, you're getting an effective ISO of 100.
So my understanding of Fred's discussion is still steeply on the learning curve here.
This was in the thread relating to the ETTR method.
"S/R ratio increases by the square root of the number of images. So, only 4 images "mean stacked" already doubles SNR. So, if we lose 2 stops in the highlights using the app, any number of images after 8, already gives us advantage regardless of any highlight loss."
So I am not sure how the shots relate to ISO equivalence?
My understanding is that you expose for the highlights as there is virtually no noise in the shadows
OleAndre wrote:
I´ve been evaluating for some time whether I should get a Summicron 50, especially after seeing all the marvellous photos taken by Charles with his version 4 of this lens. The other day I was in London, and I paid a visit to Red Dot Cameras (highly recommended), as I knew they had both the v4 and v5 in stock. I tried them on, was instantly impressed, but I also asked if they had the corresponding R version. And when I used the R version, I actually liked the handling a bit better. Yes, its considerably larger, but the focus throw is longer, with a tad more resistance to it. Moreover, with the price being about a third, the choice was easy. The R version it was!
Today I had my first shot with the lens, and obviously more testing is necessary in the coming weeks before i make up my mind. But first impression is very good. This picture is pretty much straight out of camera - i reduced the contrast slightly, and increased shadows and vibrance a tad.
Congrats Ole on the new 50 Cron IV R Great portrait shot!!
I just love the tonality from this lens. It is subtle and sharp and no downside using it on the A7 series.
One of the first places I look for color and tonality is in the hair. The hair looks and "feels" it is real and has texture and adds so much more to the portrait. I have always loved the Mandler rendering for the subtle look and the very real feel at the same time.
