odklizec
PK
This test is only a quick and dirty addition to excellent Gerd's experiment with P10 and some Ricoh converter lenses available here:
http://www.waloszek.de/gxr_conv_e.php
By default, P10 is incapable of using converter lenses. Although both P10 and S10 share nearly identical lens cap mount, small protrusions on the P10 mount prevents the HA3 tube to be mounted on the P10 module. I was in an adventurous mood today and I decided to try adapt the HA3 for P10 mount. All it required was smooth file, some patience and a bit of luck
Now I can attach the HA3 on the P10 and it still works fine also with S10. However, this alone is only a first step!
The major reason why Ricoh probably prevented the HA3 to be mounted on the P10 is the fact, that if the lens is fully extended to 300 mm, it's slightly longer than the HA3 and therefore, it's impossible to attach anything on the HA3. Of course, you can mount anything on the HA3 before extending the lens. But if you extend the lens to max, it will hit the rear part of attached lens or filter and this may lead to damage of the P10 lens mechanism. So what it needs is a bit of extension. I think a simple 43-43mm spacer (or two) spacer would do the job?
Sadly, I currently don't have any spacer to try with Ricoh lenses. On a positive note, I have a 43-46 ring that was delivered with Olympus TCON14. And it works very well as the required length extension for HA3! So I was able to mount TCON14 in front of fully extended P10 lens maximizing its focal length to 435mm! And to my great surprise, it works very well!
As you can see, both GT1 and TC1 are completely worthless, except for creating "lensbaby-like" effect I described >here<.
TCON14, on the other hand, seems to be very usable. Of course, there is some corner softness and pronounced chromatic aberration. But nothing dramatic as in case of GT1/TC1. Generally, it works very well.
There are, of course, also some drawbacks. First is the size of entire combo, second is the problematic usability in anything but good light. 435mm is simply too long for handheld shots and f5.6 at 300mm does not help either.
Tomorrow, I will try to take and post some more examples and a detail of adapted HA3.
UPDATE:
Here is how the TCON14 look attached on P10:
And here is the gigantic TCON14b:
TCON14b delivers somewhat better image quality than TCON14. But because of its size and weight, its practically useless.
Here is a comparison of P10 (on left) and S10 extension mount. The little protrusion on the P10 prevents the HA3 to be mounted on.
If you are an adventurous type, you can try to adapt the HA3 with smooth file. Below you can see the places you need to take care of. All you need to do is to lower the profile of all these places. Do it in a little steps and always try the HA3 on P10 before next round of filling.
BTW, I'm not responsible on any damage you may do to HA3 or P10!
http://www.waloszek.de/gxr_conv_e.php
By default, P10 is incapable of using converter lenses. Although both P10 and S10 share nearly identical lens cap mount, small protrusions on the P10 mount prevents the HA3 tube to be mounted on the P10 module. I was in an adventurous mood today and I decided to try adapt the HA3 for P10 mount. All it required was smooth file, some patience and a bit of luck
Now I can attach the HA3 on the P10 and it still works fine also with S10. However, this alone is only a first step! The major reason why Ricoh probably prevented the HA3 to be mounted on the P10 is the fact, that if the lens is fully extended to 300 mm, it's slightly longer than the HA3 and therefore, it's impossible to attach anything on the HA3. Of course, you can mount anything on the HA3 before extending the lens. But if you extend the lens to max, it will hit the rear part of attached lens or filter and this may lead to damage of the P10 lens mechanism. So what it needs is a bit of extension. I think a simple 43-43mm spacer (or two) spacer would do the job?
Sadly, I currently don't have any spacer to try with Ricoh lenses. On a positive note, I have a 43-46 ring that was delivered with Olympus TCON14. And it works very well as the required length extension for HA3! So I was able to mount TCON14 in front of fully extended P10 lens maximizing its focal length to 435mm! And to my great surprise, it works very well!
As you can see, both GT1 and TC1 are completely worthless, except for creating "lensbaby-like" effect I described >here<.
TCON14, on the other hand, seems to be very usable. Of course, there is some corner softness and pronounced chromatic aberration. But nothing dramatic as in case of GT1/TC1. Generally, it works very well.
There are, of course, also some drawbacks. First is the size of entire combo, second is the problematic usability in anything but good light. 435mm is simply too long for handheld shots and f5.6 at 300mm does not help either.
Tomorrow, I will try to take and post some more examples and a detail of adapted HA3.
UPDATE:
Here is how the TCON14 look attached on P10:
And here is the gigantic TCON14b:
TCON14b delivers somewhat better image quality than TCON14. But because of its size and weight, its practically useless.
Here is a comparison of P10 (on left) and S10 extension mount. The little protrusion on the P10 prevents the HA3 to be mounted on.
If you are an adventurous type, you can try to adapt the HA3 with smooth file. Below you can see the places you need to take care of. All you need to do is to lower the profile of all these places. Do it in a little steps and always try the HA3 on P10 before next round of filling.
BTW, I'm not responsible on any damage you may do to HA3 or P10!
