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Technical Camera Images
- Thread starter danlindberg
- Start date
mristuccia
Well-known member
Berlin, this evening my goal was chasing the comet Tsuchinshan-ATLAS but when I've seen this moon I couldn't resist...
CFV-100c | Cambo Wide DS | 250 SA
CFV-100c | Cambo Wide DS | 250 SA
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mristuccia
Well-known member
Well... first try....
CFV-100c | Cambo Wide DS | CF 100 T*
CFV-100c | Cambo Wide DS | CF 100 T*
Whisp3r
Well-known member
Continuing my exploration of lonely buildings while learning how to use the tech cam properly
This one was shot using RM3di, IQ4150 and Rodenstock 90HR. About +5mm rise, and -10 shift to place the factory on the right-hand side of the composition. Have a great weekend!
8mm of fall …… and about 2 degrees of rotation to the left?
Thanks for sharing, great image indeed, apart from the horizon if you don’t mind me saying
Cheers!
From the glacier area South of Hofn. A terrible day with rain and wind. My wife held the umbrella and we both huddled together to block the wind. I shot this with my Fuji but thought I would keep images together
Victor B.
No rotation. I took five images from that location and was pretty sure about being level. Horizons sometimes just aren’t level….. but a couple degrees to the right certainly is an option.8mm of fall …… and about 2 degrees of rotation to the left?
Thanks for sharing, great image indeed, apart from the horizon if you don’t mind me saying
Cheers!
Victor B.
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Whisp3r
Well-known member
The fruit of yesterday's 'labour' ;-) Been having quite a bit of fun with the Arca RM3di. My two favourite lenses so far have been the 60XL and the 90HR. The first image was made using the Sinaron 90HR, 15mm rise, +2mm shift. Second image is a crop showing some facade details, shot using the 60XL. I forgot to note down the specific movement values, sorry.
The building is the MAS, or Museum aan de Stroom, located in Antwerp. I am particularly fond of photographing buildings that appear to be isolated from their surroundings. Funny detail: the area where the building is located is called 't Eilandje which translates into little island
Have a great Sunday!
Cemal Emden
Well-known member
Possagno, The Conova Plaster Cast Gallery, IQ4 150 + Digitar 120N
My former enployer took the liberty to get inspired by that buildingView attachment 217017
View attachment 217018
The fruit of yesterday's 'labour' ;-) Been having quite a bit of fun with the Arca RM3di. My two favourite lenses so far have been the 60XL and the 90HR. The first image was made using the Sinaron 90HR, 15mm rise, +2mm shift. Second image is a crop showing some facade details, shot using the 60XL. I forgot to note down the specific movement values, sorry.
The building is the MAS, or Museum aan de Stroom, located in Antwerp. I am particularly fond of photographing buildings that appear to be isolated from their surroundings. Funny detail: the area where the building is located is called 't Eilandje which translates into little island
Have a great Sunday!
i should mention, not my image
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Whisp3r
Well-known member
Here's another one for ya. This is the Port Authority building in Antwerp, Belgium. A creation by Zaha Hadid Architects. I used an Arca Swiss RM3di, IQ4150 and an SK 60XL. I don't remember the exact shift values but it was quite a bit, around 25mm rise to get the top of the structure in the frame and eliminate the foreground/street/sidewalk/etcetera. Have a great weekend!
Three Brothers by John Ngai, on FlickrWRS 1250 | IQ4 150 | Rodenstock 40HR | f/16 | 2.5s | 3-image stitch | maybe a little bit of tilt?
The Three Brothers formation of Yosemite National Park, reflected in the Merced River in early morning light with some clouds floating gently above. Since there were some shenanigans with tilt, shifting and stitching, I thought it appropriate to post this image here.
John
rdeloe
Well-known member
I've been using my Mamiya G 50mm f/4 L extensively this year, and have been very happy with the results. I've also been able to get better results from some other lenses with more careful shimming of the cells. So I decided to open up the G 50mm to see if it could be improved. Long story short, after a lot of adjusting and testing, I found what I thought (based on my testing setup) was an improved cell spacing. However, improved against test charts in the studio doesn't always mean improved in real world photography.
I had a meeting in one of our newer, fancier buildings today so I brought my camera along to test out the re-calibrated lens. I was looking for scenes that made for good test subjects. Normally I don't do anything with these images once I evaluate them. But I quite liked these two so here they are.
Both of these are with the Mamiya G 50mm f/4 L on my F-Universalis with a GFX 100S. The lens was designed to cover 6x6 film using a Mamiya 6 rangefinder. Technically that means 15mm of shift on the long edge should be possible with a 33mm x 44mm sensor. It is possible -- and I've had good results with up to 20mm of shift in some cases. But I find the lens does better with just under 15mm.
One nice feature of this lens is that it's effectively free of distortion. I've cleaned these two images up to make them presentable. This including a bit of straightening because I can't count on being perfectly level. However, I did not have to correct distortion because there is none that I could see. Lines that are straight here were straight in the RAW file.
This is the atrium of our Engineering 7 building. I only needed 2.5mm of front fall, so it's not pushing the lens much.
Engineering 7 has an interesting facade that offered a nice study in geometric shapes. It required 13.5mm of shift, and I was pleasantly surprised that at f/11 the top of the building was very clean. The new cell spacing I set up traded off a bit of shift room for reduced field curvature, which gave me better shift performance in the zone I tend to use.
I had a meeting in one of our newer, fancier buildings today so I brought my camera along to test out the re-calibrated lens. I was looking for scenes that made for good test subjects. Normally I don't do anything with these images once I evaluate them. But I quite liked these two so here they are.
Both of these are with the Mamiya G 50mm f/4 L on my F-Universalis with a GFX 100S. The lens was designed to cover 6x6 film using a Mamiya 6 rangefinder. Technically that means 15mm of shift on the long edge should be possible with a 33mm x 44mm sensor. It is possible -- and I've had good results with up to 20mm of shift in some cases. But I find the lens does better with just under 15mm.
One nice feature of this lens is that it's effectively free of distortion. I've cleaned these two images up to make them presentable. This including a bit of straightening because I can't count on being perfectly level. However, I did not have to correct distortion because there is none that I could see. Lines that are straight here were straight in the RAW file.
This is the atrium of our Engineering 7 building. I only needed 2.5mm of front fall, so it's not pushing the lens much.
Engineering 7 has an interesting facade that offered a nice study in geometric shapes. It required 13.5mm of shift, and I was pleasantly surprised that at f/11 the top of the building was very clean. The new cell spacing I set up traded off a bit of shift room for reduced field curvature, which gave me better shift performance in the zone I tend to use.
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rdeloe
Well-known member
Friendly self-amendment to that point....
John's eagle eye noticed that in fact there is a bit of barrel distortion in this 13.5mm shifted (rise) image. I didn't see it until I put the guide tool across the top, but it's there. It cleaned up with +5 distortion correction. I'd have to test some more to see if it's present in unshifted images. Either way, given how infrequently I shoot scenes like this, I'm good!Here's the corrected version.
John Leathwick
Well-known member
Even with that tiny bit of distortion, that lens is still a testament to Mamiya's ability to manufacture lenses for medium format. The Mamiya 6, Mamiya 7 and RZ lenses all seem to be remarkable sets of optics. My impression is that they don't always get the recognition for that which they deserve.Friendly self-amendment to that point....
Here's the corrected version.
-John
I think the Mamiya 7 is close to the perfect camera and the lenses are, indeed, extraordinary. It was my first serious MF purchase. But now the kit (all the lenses except the 50) sits in my cabinet, because I almost always pick up my Blad 500 c/m. I know the Mamiya is a "better" kit, but the Blad just has a lot more soul.