35mm Adapter Static Aldu35

Bob Hart · November 30th, 2004, 10:55 AM

I have a Sigma 28mm which fits to the Nikon mount on the front of my version but I have had extreme difficulty in getting a sharp image. I did get a better result with a Cimko 28mm to 85mm zoom but it was f3.4 and went dark on full zoom. On the non-erecting version it was acceptable and my music video test "My Time Again" was shot on it.

In conversation with some people who hire equipment here, the consensus was that the Agus or Mini35 for that matter would probably be best employed if the wide-angle footage was shot direct to camcorder and the Agus kept only for head shots and the depth of field work.

Aaron Shaw · November 30th, 2004, 12:20 PM

Interesting. Any idea why that might be?

Juan M. M. Fiebelkorn · November 30th, 2004, 12:32 PM

well, I shot a full 82 minutes movie using the Mini35 without any image quality problem if this helps.....

Bob Hart · November 30th, 2004, 09:34 PM

Juan.

I forgot to mention in my previous post, we were talking about shooting high definition TV.

The Agus version I have built certainly would not compare favourably with the Mini35 in a production environment as it has to be managed with gentle care as I have discovered in my most recent test or the results will be inconsistent.

What lenses did you use on the Mini35?

Fred Finn · December 8th, 2004, 12:37 PM

I have some test footage using Mylar instead of glass or plastic in the GG position. I took a 35mm lens and basically rebuilt it for this. I took just the lens part and put it in a piece ov PVC, using just the basic gearing for focus. here the footage www.hazardousproductions.com/test.mov. Not a great camera job but the point is there.

Juan M. M. Fiebelkorn · December 8th, 2004, 02:42 PM

I used PL mount, Carl Zeiss f 1.2 lenses..

Donnie Wagner · December 8th, 2004, 03:58 PM

I've built a 35mm lens adapter for my Sony vx2000 Mini DV camcorder. In FCP, obviously there is an anamorphic setting in sequence settings and capturing settings, but it is only for 1.78:1 (16X9). Is there a way to tell the system that I'm actually using an anamorphic lens that compresses the image 2:1, or even 2.25:1? I think compressing the image manually after capturing will degrade the resolution.

Aaron Shaw · December 8th, 2004, 09:00 PM

Fred: wouldn't mylar cause a dramatic light loss? Isn't that stuff highly reflective?

Fred Finn · December 8th, 2004, 09:51 PM

Their are different kinds (i think not 100 sure). The stuff i have is flat, not glossy. The test video i have is only natural lighting. aka sun...

Aaron Shaw · December 8th, 2004, 09:54 PM

Ah ok. Thanks for the info Fred :).

Just out of curiosity, what camera did you use for the test?

Fred Finn · December 8th, 2004, 10:08 PM

Gl-1. How'd it look?

Aaron Shaw · December 9th, 2004, 09:41 AM

It was hard to judge how the actual adapter performed due to the fairly strong backlighting. Things were either pretty dark or over exposed.

Matt Ziegeler · December 9th, 2004, 08:45 PM

can anyone here from Australia please tell me where they bought aluminum oxide from. i'm having a fair bit of trouble finding a source.

Bob Hart · December 9th, 2004, 10:37 PM

Francis Lord Optics supplied me with some AO5 on request when I bought my 40mm prisms from them. "sales@flo.com.au". I don't know if they will do small orders alone.

Matt Ziegeler · December 10th, 2004, 05:26 AM

thanks i'll give them a try, of course is any one out there has any other sources that would also be very helpful. Theres just so much information to wade through that its tough to find specifics.

December 8th, 2004, 12:37 PM	#1145
Fred Finn Regular Crew Join Date: Jan 2004 Location: Jackson, WY Posts: 178	I have some test footage using Mylar instead of glass or plastic in the GG position. I took a 35mm lens and basically rebuilt it for this. I took just the lens part and put it in a piece ov PVC, using just the basic gearing for focus. here the footage www.hazardousproductions.com/test.mov. Not a great camera job but the point is there. __________________ i am the muffin man.

December 8th, 2004, 03:58 PM	#1147
Donnie Wagner Regular Crew Join Date: Dec 2004 Location: Pittsburgh, PA Posts: 135	Anamorphic 35mm lens I've built a 35mm lens adapter for my Sony vx2000 Mini DV camcorder. In FCP, obviously there is an anamorphic setting in sequence settings and capturing settings, but it is only for 1.78:1 (16X9). Is there a way to tell the system that I'm actually using an anamorphic lens that compresses the image 2:1, or even 2.25:1? I think compressing the image manually after capturing will degrade the resolution.

December 8th, 2004, 09:51 PM	#1149
Fred Finn Regular Crew Join Date: Jan 2004 Location: Jackson, WY Posts: 178	Their are different kinds (i think not 100 sure). The stuff i have is flat, not glossy. The test video i have is only natural lighting. aka sun... __________________ i am the muffin man.

December 8th, 2004, 10:08 PM	#1151
Fred Finn Regular Crew Join Date: Jan 2004 Location: Jackson, WY Posts: 178	Gl-1. How'd it look? __________________ i am the muffin man.

November 30th, 2004, 10:55 AM	#1141
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	I have a Sigma 28mm which fits to the Nikon mount on the front of my version but I have had extreme difficulty in getting a sharp image. I did get a better result with a Cimko 28mm to 85mm zoom but it was f3.4 and went dark on full zoom. On the non-erecting version it was acceptable and my music video test "My Time Again" was shot on it. In conversation with some people who hire equipment here, the consensus was that the Agus or Mini35 for that matter would probably be best employed if the wide-angle footage was shot direct to camcorder and the Agus kept only for head shots and the depth of field work.

November 30th, 2004, 12:20 PM	#1142
Aaron Shaw Major Player Join Date: Jul 2004 Posts: 587	Interesting. Any idea why that might be?

November 30th, 2004, 12:32 PM	#1143
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	well, I shot a full 82 minutes movie using the Mini35 without any image quality problem if this helps.....

November 30th, 2004, 09:34 PM	#1144
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	Juan. I forgot to mention in my previous post, we were talking about shooting high definition TV. The Agus version I have built certainly would not compare favourably with the Mini35 in a production environment as it has to be managed with gentle care as I have discovered in my most recent test or the results will be inconsistent. What lenses did you use on the Mini35?

December 8th, 2004, 02:42 PM	#1146
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	I used PL mount, Carl Zeiss f 1.2 lenses..

December 8th, 2004, 09:00 PM	#1148
Aaron Shaw Major Player Join Date: Jul 2004 Posts: 587	Fred: wouldn't mylar cause a dramatic light loss? Isn't that stuff highly reflective?

December 8th, 2004, 09:54 PM	#1150
Aaron Shaw Major Player Join Date: Jul 2004 Posts: 587	Ah ok. Thanks for the info Fred :). Just out of curiosity, what camera did you use for the test?

December 9th, 2004, 09:41 AM	#1152
Aaron Shaw Major Player Join Date: Jul 2004 Posts: 587	It was hard to judge how the actual adapter performed due to the fairly strong backlighting. Things were either pretty dark or over exposed.

December 9th, 2004, 08:45 PM	#1153
Matt Ziegeler New Boot Join Date: Dec 2004 Location: South Australia Posts: 19	can anyone here from Australia please tell me where they bought aluminum oxide from. i'm having a fair bit of trouble finding a source.

December 9th, 2004, 10:37 PM	#1154
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,476	Francis Lord Optics supplied me with some AO5 on request when I bought my 40mm prisms from them. "sales@flo.com.au". I don't know if they will do small orders alone.

December 10th, 2004, 05:26 AM	#1155
Matt Ziegeler New Boot Join Date: Dec 2004 Location: South Australia Posts: 19	thanks i'll give them a try, of course is any one out there has any other sources that would also be very helpful. Theres just so much information to wade through that its tough to find specifics.