View Full Version : P+S Patent, Homeadopter Picture Quality
March 27th, 2005, 07:28 AM
Has anyone have any information about this? Has P+S have patent on the Mini and Pro adaptors? When P+S itroduce Mini adaptor? Pro adaptor? Will thay have cheaper model?
How the home made adaptor picture quality compare to P+S?
March 27th, 2005, 01:49 PM
yes,yes,before pro, afterpro,have to ask them-secret, fair....
Rad, when i first came to the forum i tried to read as much as i could before asking questions (it saved on duplicate postings, thus making it easier for the next person to not have as much information to wade thru...).
i believe the patent question has been answered several times, but a visit to the patent page will not yeild much info that the home builder can use...
March 27th, 2005, 02:31 PM
Where is the patent page? I looked through the whole forum and did not find patent thread.
March 27th, 2005, 07:21 PM
it really isnt a great deal of help towards building your own, in my opinion.....
March 27th, 2005, 08:15 PM
Home made adaptors can make a picture which looks better, but will have a defect of some kind.
Bright even image spoiled by soft focus. (Cause = too small an area imaged off the groundglass - poor quality groundglass - poor relay optics.)
Sharp image - spoiled by corner cropping, vignetting or hotspots.
Fair to good sharpness image spoiled by interlace artifacts. (Cause = shaky or wobbly gg disk.)
Brightness flickers. (Cause = inconsistent quality off groundglass finish around groundglass disk.)
These defects can be fixed but the fix often will introduce another of the faults. (Example = attempt to improve sharpness off the disk image by using a larger frame introduces the hotspot.)
P+S Technik appear to have arrived at the ideal balance between all the problems.
March 28th, 2005, 12:37 AM
I have and have watched a few times (at times frame by frame) both mini and Pro35 demo DVDs.
I have seen (without looking too hard (on some scenes) a hot spot in the image. On others is not that obvious, but is there in each and every shoot. (even in that clip posted on line a while ago shoot in S Africa or something with the Pro35) In bright outside exterior, you can see the corners darker (a bit but they are; a desert scene?) Better than most homemade, yes. Perfect? Nop. (that goes for both)
It is kind of known by now, but:
The farther you place the camcorder to GG (and zoom in) the less hot spot you will get. (try it home and see). the corollary is also true) hence the rotating image prisms (not only rotate the image but shorten the distance from GG to camcorder on the rods (as opposed to having a looong d..g in front of the lens). Light loss (from the GG), heavier and more expensive from the prisms (purchase, align, machine housing) but shorter. Pick you choice.
Radek, why are you so concerned or interested in their patent? Is not worth much (as near as I can figure it out)
Neither protection nor information.
March 28th, 2005, 03:52 AM
Thank you. So it is not worth time to read the patent I understand. No helpful information. It's too bad. Too bad even the Germans can't eleiminate hot spot.
March 28th, 2005, 11:34 AM
It is helpful to read and make your own decision. The above was just a personal opinion.
>>>Too bad even the Germans can't eliminate hot spot<<<
"Not even the Germans" sounds like "not even God himself"
Damn "bad hot spot" ....;-)<
March 28th, 2005, 05:22 PM
Yes, but Radek remembers how well organized the Germans 'eliminated the hot spot' back in the '40s. (forgive my black humor)
Radek, have you seen the treads by Leo Mandy (search: Mandy Leo) on hot spots?
March 28th, 2005, 10:36 PM
Black humor is welcome! (thanks) too bad I did not "click" without help......... (but that is a very good one....)
March 28th, 2005, 10:48 PM
Yes, it's all making sense...
Ex-German brainiac scientists responsible for P+$ Technik have recently relocated to South America and taken up new, secret identities where they continue to pursue their unbridled passion...
*cough* *cough* Agus *cough* *cough*
March 29th, 2005, 03:16 AM
And now he have resurfaced somewhere on american continent and make an improved adaptor. It costs less money. But can't reveal his past identity. So poeple don't think that his adaptor is Mercedes of adaptors. He gives hints on his site with his native language.
March 29th, 2005, 10:40 AM
> He gives hints on his site with his native language<
Raaaaadek, youuu...sly ol' fox youuu...
you don't miss a thing... do you?
If you want to blow his cover you must huff'n puff and....blow harder..... I (for one) could not even guess where you are aiming... (damn quick thinking Europeans.....)
March 29th, 2005, 10:56 AM
His initials DD, I think. I wonder if he reads these threads.
March 29th, 2005, 11:06 AM
I wonder too.....
.....hmmmmmm, now...how could "zeat" be....?