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Archive 2016Front-End Filter Improves Corner Smearing
p.34 #1Front-End Filter Improves Corner Smearing
Damn its better than my GM 24-70 in the corners at 2.8
Jan 24, 2017 at 10:47 AM
p.34 #2Front-End Filter Improves Corner Smearing
Okay at 2.8 the ZM 25mm with proxar on and off and the GM 24-70 at 26mm
Jan 24, 2017 at 11:01 AM
p.34 #4Front-End Filter Improves Corner Smearing
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im floored
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
Jan 24, 2017 at 11:19 AM
p.34 #5Front-End Filter Improves Corner Smearing
@GMPhotography
And we know how good the 24-70GM is at 25mm. (Although it needs at least f/4 for the corners)
This result is fantastic for the ZM 25/2.8!
And we know how good the 24-70GM is at 25mm. (Although it needs at least f/4 for the corners)
This result is fantastic for the ZM 25/2.8!
Jan 24, 2017 at 11:28 AM
p.34 #6Front-End Filter Improves Corner Smearing
GMPhotography wrote:
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im floored
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im floored
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
Jan 24, 2017 at 11:29 AM
p.34 #7Front-End Filter Improves Corner Smearing
HaruhikoT wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
He is using the B50.
I know that because he got it from me.
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
He is using the B50.
I know that because he got it from me.
Jan 24, 2017 at 11:31 AM
p.34 #8Front-End Filter Improves Corner Smearing
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.
Thank you, Fred.
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
Thank you, Fred.
Jan 24, 2017 at 11:38 AM
p.34 #9Front-End Filter Improves Corner Smearing
HaruhikoT wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.Thank you, Fred.
If I didn't already have the superb Loxia 21/2.8, I would be all over the ZM 25/2.8 + Proxar 1m.
I really want a great 28mm and hopefully the Contax 28/2.8 G will work well with the PCX 1.5m (reversed).
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
If I didn't already have the superb Loxia 21/2.8, I would be all over the ZM 25/2.8 + Proxar 1m.
I really want a great 28mm and hopefully the Contax 28/2.8 G will work well with the PCX 1.5m (reversed).
Jan 24, 2017 at 11:47 AM
p.34 #10Front-End Filter Improves Corner Smearing
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.
I couldn't find that one, may it be B57 Ø50mm?
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
I couldn't find that one, may it be B57 Ø50mm?
Jan 24, 2017 at 12:02 PM
p.34 #11Front-End Filter Improves Corner Smearing
Hmm, that ZM25 looks really interesting to me. I would like the focal length and it would be great to have a high contrast WA with nice sunstars and good flare resistance. Guy, if you could point it towards the sun and take some pictures that would be a great help.
I look forward for further results
I look forward for further results
Jan 24, 2017 at 12:03 PM
p.34 #12Front-End Filter Improves Corner Smearing
Loving it Fred
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.
Fred Miranda wrote:
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
Jan 24, 2017 at 12:06 PM
p.34 #13Front-End Filter Improves Corner Smearing
BastianK wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.I couldn't find that one, may it be B57 Ø50mm?
On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".
Jan 24, 2017 at 12:06 PM
p.34 #14Front-End Filter Improves Corner Smearing
Yea I have to do more testing for sure but so far very impressing. I'm just stuck on a house painting my exterior. So I'll get to it soon
Phillip Reeve wrote:
Hmm, that ZM25 looks really interesting to me. I would like the focal length and it would be great to have a high contrast WA with nice sunstars and good flare resistance. Guy, if you could point it towards the sun and take some pictures that would be a great help.
I look forward for further results
Phillip Reeve wrote:
Hmm, that ZM25 looks really interesting to me. I would like the focal length and it would be great to have a high contrast WA with nice sunstars and good flare resistance. Guy, if you could point it towards the sun and take some pictures that would be a great help.
I look forward for further results
Jan 24, 2017 at 12:07 PM
p.34 #15Front-End Filter Improves Corner Smearing
It's working that's for sure
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.I couldn't find that one, may it be B57 Ø50mm?On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
Fred Miranda wrote:
BastianK wrote
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
Jan 24, 2017 at 12:08 PM
p.34 #16Front-End Filter Improves Corner Smearing
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.I couldn't find that one, may it be B57 Ø50mm?On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
Is the diameter of the lens 50mm?
As far as I understand there are Ø50mm = B57 (description bayonet for Hasselblad lenses) and Ø60mm = B60.
But maybe I got that wrong, so I would be interested in the diameter of the lens.
BastianK wrote
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
Is the diameter of the lens 50mm?
As far as I understand there are Ø50mm = B57 (description bayonet for Hasselblad lenses) and Ø60mm = B60.
But maybe I got that wrong, so I would be interested in the diameter of the lens.
Jan 24, 2017 at 12:10 PM
p.34 #17Front-End Filter Improves Corner Smearing
Fred Miranda wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.I couldn't find that one, may it be B57 Ø50mm?On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".
As I expected, thank you very much!
These H'blad filter bayonets are quite confusing...
BastianK wrote
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".
As I expected, thank you very much!
These H'blad filter bayonets are quite confusing...
Jan 24, 2017 at 12:12 PM
p.34 #18Front-End Filter Improves Corner Smearing
BastianK wrote:
The ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6Wow, great results
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?He is using the B50.
I know that because he got it from me.I couldn't find that one, may it be B57 Ø50mm?On the paperwork I have it says Hasselblad Proxar B50 but it could be wrong.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".As I expected, thank you very much!
These H'blad filter bayonets are quite confusing...
As far as I know B50 and B57 represent the same filter format. Also B67 = B60. Yes it's quite confusing...
I own B57 Proxar 2m. Its bare lens diameter is 50.8mm (2inch). I expect f=1m has the same diameter.
Fred Miranda wrote
BastianK wrote
Fred Miranda wrote
HaruhikoT wrote
GMPhotography wrote
Here is the crazy part with Proxar on its better at 2.8 in the corners than with it off at F8. Its that much of a difference. Im flooredThe ZM 25mm with Proxar on takes at 2.8 takes the GM to match it at F5.6
There are some versions of Proxar 1m, having different diameter e.g. B57, B67, A42 and A28.5. Which one are you using?
I know that because he got it from me.
I just found one at Keh.com:
https://www.keh.com/shop/hasselblad-manual-focus-proxar-b50-1-0-50318-719369.html
It's confusing because their description shows "B50" but if you look at their picture, the lens is marked with "B57".
These H'blad filter bayonets are quite confusing...
As far as I know B50 and B57 represent the same filter format. Also B67 = B60. Yes it's quite confusing...
I own B57 Proxar 2m. Its bare lens diameter is 50.8mm (2inch). I expect f=1m has the same diameter.
Jan 24, 2017 at 12:19 PM
p.34 #19Front-End Filter Improves Corner Smearing
I was able to test the Contax 28mm f/2.8 G with the PCX 1.5m (in reversed orientation) front-lens today.
This is one of the first lenses tested by @HaruhikoT , and I see similar findings. There is little improvement in the center but there is big improvement towards the corners. See crops below at f/2.8, f/4, f/5.6 and f/8 (extreme corners)
Best of 3 for each aperture. Same sharpening settings for both.
I used the Kipon adapter and didn't have to adjust the lens in an way. I'm actually able to focus pass infinity with this adapter and the front-lens.
f/2.8 (Extreme corners)
f/4 (Extreme corners)
f/5.6 (Extreme corners)
f/8 (Extreme corners)
This is one of the first lenses tested by @HaruhikoT , and I see similar findings. There is little improvement in the center but there is big improvement towards the corners. See crops below at f/2.8, f/4, f/5.6 and f/8 (extreme corners)
Best of 3 for each aperture. Same sharpening settings for both.
I used the Kipon adapter and didn't have to adjust the lens in an way. I'm actually able to focus pass infinity with this adapter and the front-lens.
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f/2.8 (Extreme corners)
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f/4 (Extreme corners)
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f/5.6 (Extreme corners)
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f/8 (Extreme corners)
Jan 24, 2017 at 04:57 PM
p.34 #20Front-End Filter Improves Corner Smearing
GMPhotography wrote:
Okay at 2.8 the ZM 25mm with proxar on and off and the GM 24-70 at 26mm
Wow!!
Thanks for posting
Okay at 2.8 the ZM 25mm with proxar on and off and the GM 24-70 at 26mm
Wow!!
Thanks for posting
Jan 25, 2017 at 01:24 AM