new adaptors at DVinfo.net

Phil Bloom · May 30th, 2007, 05:03 PM

Hi guys,

Dennis at Brevis (how poetic) has sent me two new Brevis adaptors to replace mine, with new tweaks on them. I will get them tomorrow and will let you know how well they perform. I am sure very well!

Also a chap in Brazil called Adriano has sent me one of his new adaptors called the Apefos...again this should come tomorrow...I will let you guys know what I think!

Phil

Jon Wolding · May 30th, 2007, 11:28 PM

Apefos' website... interesting, but the images look rather grainy.

Phil Bloom · June 2nd, 2007, 08:58 AM

VERY dissapointed with the Apefos.

Initial impressions...

Solid, but probably as well made as the Letus rather than the Redrock or Brevis.

Terrible plastic thread, coming off already. Non lockable Nikon Thread, not as bad as my old Letus but pretty atrocious!

Worst of all...It gives some sort of Vortex BOKEH. Never a good look.

Adriano the maker is looking into this for me. I am hoping he can fix it, he thinks there could be something wrong with the vibration. I like the image otherwise.

Have a look below. 3rd image is brevis

Bob Hart · June 2nd, 2007, 02:21 PM

Phil.

RE: APEFOS.

Is he oscillating an entire fresnel condenser/groundglass combination? This might account for the circular effect and that could be a dead-end for ultra-wide shots where there are more defined textures in background.

If he is using an inertial resistive action like Quyen, he may be getting a static or slow centre. I would expect to see grain in or near the centre if this was happening. It will be interesting if you increase the shutter speed, tighten the aperture and see where the grain shows first.

Phil Bloom · June 2nd, 2007, 06:30 PM

Quote:

Originally Posted by Bob Hart

Phil.

RE: APEFOS.

Is he oscillating an entire fresnel condenser/groundglass combination? This might account for the circular effect and that could be a dead-end for ultra-wide shots where there are more defined textures in background.

If he is using an inertial resistive action like Quyen, he may be getting a static or slow centre. I would expect to see grain in or near the centre if this was happening. It will be interesting if you increase the shutter speed, tighten the aperture and see where the grain shows first.

I really don't know Bob. Adriano is trying to work out the problem, he thinks it is vibrating in a circular motion and he trying to find out why...problem him being in Brazil makes it difficult.

Could it be the achromat? I don't think he has ever tested it with an achromat...could this cause such a look?

Bob Hart · June 2nd, 2007, 09:57 PM

Phil.

It mght be related to the achromat if he has another element in there as a condenser.

I have seen something similar when I was setting up the telescope eyepiece optics on an earlier version of my own project, but there was also a darkness area associated with this abberation. Edge distortion as a radial stretching effect around the perpihery of the image is something we often see here.

If there is a correcting element in there interacting with the achromat, then a radial compressing optical effect might occur which would create the artifact in the APEFOs image. If you are able to zoom in a little closer, it may go away but this then defeats the resolution quality of the image.

The image to my eye otherwise would be acceptable.

Phil Bloom · June 3rd, 2007, 08:44 AM

its the condenser...it creats the vortex when wide open.

Adriano's solution...remove the condenser, which means it would be wide open to all the elements...not good...other solution dont make stuff out of focus in background then you wont see it!

Bob Hart · June 3rd, 2007, 09:26 AM

Phil.

There was a reference to the Apefos here a while back. I suggested then, that except for misgivings I felt about some build issues, that it should not be dismissed too lightly.

If SLR lens aperture affects the condenser interaction, then is the condenser between the SLR lens and the GG???

If the condenser is on the camcorder side of the GG and is simply moved closer to the achromat, some of the distortion may go away.

Another solution might be to use a wider diameter condenser of same or maybe a little lesser power that the achromat/camcorder combination can zoom inside of without having to claim too small an area off the groundglass.

A wider diameter condenser in turn may require a wider diameter case and if that is the situation, there comes another problem.

That is the elusive nature of R&D even if it is effectively reverse engineering.

Chris Bolt · June 4th, 2007, 09:28 AM

Phil, who is the hot chick? :-)

Phil Bloom · June 4th, 2007, 04:18 PM

that's my woman!!

Chris Bolt · June 4th, 2007, 04:30 PM

I figured a daughter or something. :-) My wife also has brown hair and eyes..

Phil Bloom · June 4th, 2007, 04:45 PM

Ha ha! i would have had to have started at 5!! even in this day and age and wee bit early!

Adriano Apefos · July 10th, 2007, 09:38 PM

I invite this forum members to visit the Apefos website to see the new model, the vortex correction, instructions and policies.

website:

http://www.apefos.com/english/indexenglish.html

vortex correction clip link:

http://www.apefos.com/newmodel/avrbc_720x480.wmv

new model tour link:

http://www.apefos.com/newmodel/newmodeltour_1.html

Adriano Apefos · December 25th, 2007, 06:42 AM

Apefos first oficial hdv clip 1080p HV20 24p

search apefos in youtube for a fast download version

go to apefos.com to a full hd 1080p version

thanks

Adriano Apefos · January 14th, 2009, 09:19 AM

I started about three years ago doing the apefos 35mm adapter, and after many R&D I have now in 2009 the APEFOS GEM. The image is perfect!

APEFOS

APEFOS GEM adaptador 35mm on Vimeo

Thank you all...

May 30th, 2007, 05:03 PM	#1
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,910	new adaptors Hi guys, Dennis at Brevis (how poetic) has sent me two new Brevis adaptors to replace mine, with new tweaks on them. I will get them tomorrow and will let you know how well they perform. I am sure very well! Also a chap in Brazil called Adriano has sent me one of his new adaptors called the Apefos...again this should come tomorrow...I will let you guys know what I think! Phil __________________ Philip Bloom DoP, Director, Editor.www.philipbloom.co.uk New Video DSLR section launched: http://philipbloom.co.uk/video-dslrs//

June 2nd, 2007, 08:58 AM	#3
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,910	VERY dissapointed with the Apefos. Initial impressions... Solid, but probably as well made as the Letus rather than the Redrock or Brevis. Terrible plastic thread, coming off already. Non lockable Nikon Thread, not as bad as my old Letus but pretty atrocious! Worst of all...It gives some sort of Vortex BOKEH. Never a good look. Adriano the maker is looking into this for me. I am hoping he can fix it, he thinks there could be something wrong with the vibration. I like the image otherwise. Have a look below. 3rd image is brevis Attached Thumbnails __________________ Philip Bloom DoP, Director, Editor.www.philipbloom.co.uk New Video DSLR section launched: http://philipbloom.co.uk/video-dslrs// Last edited by Phil Bloom; June 2nd, 2007 at 10:55 AM.

June 2nd, 2007, 02:21 PM	#4
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 2,898	Phil. RE: APEFOS. Is he oscillating an entire fresnel condenser/groundglass combination? This might account for the circular effect and that could be a dead-end for ultra-wide shots where there are more defined textures in background. If he is using an inertial resistive action like Quyen, he may be getting a static or slow centre. I would expect to see grain in or near the centre if this was happening. It will be interesting if you increase the shutter speed, tighten the aperture and see where the grain shows first. Last edited by Bob Hart; June 2nd, 2007 at 02:26 PM. Reason: error

June 2nd, 2007, 09:57 PM	#6
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 2,898	Phil. It mght be related to the achromat if he has another element in there as a condenser. I have seen something similar when I was setting up the telescope eyepiece optics on an earlier version of my own project, but there was also a darkness area associated with this abberation. Edge distortion as a radial stretching effect around the perpihery of the image is something we often see here. If there is a correcting element in there interacting with the achromat, then a radial compressing optical effect might occur which would create the artifact in the APEFOs image. If you are able to zoom in a little closer, it may go away but this then defeats the resolution quality of the image. The image to my eye otherwise would be acceptable. Last edited by Bob Hart; June 2nd, 2007 at 09:58 PM. Reason: error

June 3rd, 2007, 08:44 AM	#7
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,910	its the condenser...it creats the vortex when wide open. Adriano's solution...remove the condenser, which means it would be wide open to all the elements...not good...other solution dont make stuff out of focus in background then you wont see it! __________________ Philip Bloom DoP, Director, Editor.www.philipbloom.co.uk New Video DSLR section launched: http://philipbloom.co.uk/video-dslrs//

May 30th, 2007, 11:28 PM	#2
Jon Wolding Regular Crew Join Date: Jan 2007 Location: Tampa, FL Posts: 186	Apefos' website... interesting, but the images look rather grainy.

June 3rd, 2007, 09:26 AM	#8
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 2,898	Phil. There was a reference to the Apefos here a while back. I suggested then, that except for misgivings I felt about some build issues, that it should not be dismissed too lightly. If SLR lens aperture affects the condenser interaction, then is the condenser between the SLR lens and the GG??? If the condenser is on the camcorder side of the GG and is simply moved closer to the achromat, some of the distortion may go away. Another solution might be to use a wider diameter condenser of same or maybe a little lesser power that the achromat/camcorder combination can zoom inside of without having to claim too small an area off the groundglass. A wider diameter condenser in turn may require a wider diameter case and if that is the situation, there comes another problem. That is the elusive nature of R&D even if it is effectively reverse engineering. Last edited by Bob Hart; June 3rd, 2007 at 09:35 AM. Reason: can't spell

June 4th, 2007, 09:28 AM	#9
Chris Bolt New Boot Join Date: Mar 2006 Location: Atlanta, Georgia Posts: 9	Phil, who is the hot chick? :-) __________________ God Bless <>< VX-2100, Beachtek-6, Manfrotto 3011/501

June 4th, 2007, 04:18 PM	#10
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,910	that's my woman!! __________________ Philip Bloom DoP, Director, Editor.www.philipbloom.co.uk New Video DSLR section launched: http://philipbloom.co.uk/video-dslrs//

June 4th, 2007, 04:30 PM	#11
Chris Bolt New Boot Join Date: Mar 2006 Location: Atlanta, Georgia Posts: 9	I figured a daughter or something. :-) My wife also has brown hair and eyes.. __________________ God Bless <>< VX-2100, Beachtek-6, Manfrotto 3011/501

June 4th, 2007, 04:45 PM	#12
Phil Bloom Trustee Join Date: Aug 2006 Location: London UK Posts: 1,910	Ha ha! i would have had to have started at 5!! even in this day and age and wee bit early! __________________ Philip Bloom DoP, Director, Editor.www.philipbloom.co.uk New Video DSLR section launched: http://philipbloom.co.uk/video-dslrs//

July 10th, 2007, 09:38 PM	#13
Adriano Apefos Regular Crew Join Date: Jun 2007 Location: Belo Horizonte BRAZIL Posts: 105	Vortex correction and new model I invite this forum members to visit the Apefos website to see the new model, the vortex correction, instructions and policies. website: http://www.apefos.com/english/indexenglish.html vortex correction clip link: http://www.apefos.com/newmodel/avrbc_720x480.wmv new model tour link: http://www.apefos.com/newmodel/newmodeltour_1.html

December 25th, 2007, 06:42 AM	#14
Adriano Apefos Regular Crew Join Date: Jun 2007 Location: Belo Horizonte BRAZIL Posts: 105	Apefos first oficial hdv clip 1080p HV20 24p Apefos first oficial hdv clip 1080p HV20 24p search apefos in youtube for a fast download version go to apefos.com to a full hd 1080p version thanks

January 14th, 2009, 09:19 AM	#15
Adriano Apefos Regular Crew Join Date: Jun 2007 Location: Belo Horizonte BRAZIL Posts: 105	the new apefos I started about three years ago doing the apefos 35mm adapter, and after many R&D I have now in 2009 the APEFOS GEM. The image is perfect! APEFOS APEFOS GEM adaptador 35mm on Vimeo Thank you all...

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