3.2X telephoto for the Z1U/FX1 at DVinfo.net

Carroll Lam · March 18th, 2006, 12:35 PM

Based on a "recipe" for combining telephoto adapters posted by John Jay in this thread:
http://www.dvinfo.net/conf/showthread.php?t=51686

I decided to try a combination of a Century 2X tele-adapter used on my PD150 and a Century 1.6X tele-adapter used with my Z1U.

You can see the combination mounted on the Z1U here:

http://www.clamcamvideo.com/telephoto.html

along with frame grabs taken with each of the combinations.

In summary, center-field imagery with the combination seems to be quite good.

Carroll Lam

Tom Hardwick · March 18th, 2006, 01:15 PM

It looks to be good outside lighting Carroll, so can we assume you used both internal NDs and something like f/4? Just wondering if some of the edge nasties can be cleaned up by switching off one of the NDs and shooting at f8 or so.

I find shooting perpendicular to brick walls better than trees. The latter wave in the wind and disguise any linear distortions.

tom.

Tom Hardwick · March 18th, 2006, 01:27 PM

BTW, there's some nice lenses here. I've been impressed with the Raynox lenses I've tested.
http://www.raynox.co.jp/english/dcr/egindex.htm

Carroll Lam · March 18th, 2006, 02:46 PM

The images were quick shots to get qualitative info so all the collection parameters were not recorded.

It was outdoors so probably at least ND1 was activated. The f-stops ranged from 5.2 for the Z1U lens alone to 6.2 for the add-on combos.

I expect to collect more quantitative and variational data soon.

I live in Tucson, AZ so most of our walls are adobe not brick. 8-)

Carroll Lam

Mark Utley · March 18th, 2006, 04:21 PM

Hey Carroll,

If you play back the footage in your camera and press the Status Check button, it should tell you the exact settings you had.

Emmet Lucey · March 19th, 2006, 01:38 AM

Tom Hardwick - can you post more on your experience with the two raynox lenses, the good and the bad? I need to pick up a telephoto and the Century is out of my range for now ....

thx!

Tom Hardwick · March 19th, 2006, 02:09 AM

The two Raynox lenses I've tested are the 6600 Pro and the 0.5x snap-on wide-angle converters.
http://raynox.co.jp/english/video/egwidehdxl.htm

The 2.2x telephoto is shown here:
http://raynox.co.jp/english/video/hdrfx1/index.htm
with comparison shots here:
http://www.raynox.co.jp/english/dcr/...exdcr250eg.htm

tom.

Bob Hart · March 19th, 2006, 09:49 AM

There is another approach you might try if you already have some good telephoto lenses for still-cameras.

There are people building adaptors of similar principle to the P+S Technik Mini35. I have removed the groundglass from one that I made, for using lenses which have an aperture tighter than f5.6 which are not good for using via a groundglass system.

On the PD150 with a 4:3 frame I can get inside the vignette on full zoom with the following combinations :-

7+ Century Optics Achromatic dioptre.
Camcorder zoom at 100%.

The following lenses on wide-open aperture.

Tamron 300mm prime (adaptamatic version ).
Nikon 500mm mirror telephoto f8.
MTO 1084mm mirror telephoto f11 ( a bit soft, with 2x = very soft).
Sigma 50mm - 500mm f4 - f6.3 zoom. (with 2x, a bit soft but acceptable).

I fitted the arrangment up to an FX1 but found the 16:9 screen is a bit wide for maximum zoom to entirely eliminate the vignette. I think it can just fit as I have some problems with the arrangement of my design due to the prisms I used to flip the image. If you leave the image unflipped, things are simpler.

The image the camcorder sees in back of the lens is upside-down unless prisms or mirrors are added into the path to flip the image upright and right-way about.

Joe Lumbroso · March 20th, 2006, 06:10 PM

Here's a link to footage of the DCR-2020PRO (2.2X) on a FX1.

http://raynox.co.jp/actualimage/vide...20pro-duck.mpg

I have not heard a review of this lens but you can see abberation in the demo video. However, you can get one for $188 so it might be worth looking at. I'd really like to see some high-res stills and example footage from anyone who may have taken some with either a Z1 or FX1.

http://www.1oel.com/comersus/store/c...efsession=0306

March 18th, 2006, 12:35 PM	#1
Carroll Lam Contributor Join Date: Apr 2005 Location: Tucson, AZ Posts: 128	3.2X telephoto for the Z1U/FX1 Based on a "recipe" for combining telephoto adapters posted by John Jay in this thread: http://www.dvinfo.net/conf/showthread.php?t=51686 I decided to try a combination of a Century 2X tele-adapter used on my PD150 and a Century 1.6X tele-adapter used with my Z1U. You can see the combination mounted on the Z1U here: http://www.clamcamvideo.com/telephoto.html along with frame grabs taken with each of the combinations. In summary, center-field imagery with the combination seems to be quite good. Carroll Lam

March 18th, 2006, 04:21 PM	#5
Mark Utley Major Player Join Date: Mar 2004 Location: Toronto, ON, Canada Posts: 479	Hey Carroll, If you play back the footage in your camera and press the Status Check button, it should tell you the exact settings you had. __________________ Mark Utley

March 19th, 2006, 01:38 AM	#6
Emmet Lucey Regular Crew Join Date: Nov 2003 Location: lillehammer norway Posts: 67	raynox telephoto Tom Hardwick - can you post more on your experience with the two raynox lenses, the good and the bad? I need to pick up a telephoto and the Century is out of my range for now .... thx!

March 20th, 2006, 06:10 PM	#9
Joe Lumbroso Regular Crew Join Date: Nov 2005 Location: San Francisco, CA Posts: 110	Here's a link to footage of the DCR-2020PRO (2.2X) on a FX1. http://raynox.co.jp/actualimage/vide...20pro-duck.mpg I have not heard a review of this lens but you can see abberation in the demo video. However, you can get one for $188 so it might be worth looking at. I'd really like to see some high-res stills and example footage from anyone who may have taken some with either a Z1 or FX1. http://www.1oel.com/comersus/store/c...efsession=0306 __________________ Brilliant Champions \| Gallery Hijinks

March 18th, 2006, 01:15 PM	#2
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	It looks to be good outside lighting Carroll, so can we assume you used both internal NDs and something like f/4? Just wondering if some of the edge nasties can be cleaned up by switching off one of the NDs and shooting at f8 or so. I find shooting perpendicular to brick walls better than trees. The latter wave in the wind and disguise any linear distortions. tom.

March 18th, 2006, 01:27 PM	#3
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	BTW, there's some nice lenses here. I've been impressed with the Raynox lenses I've tested. http://www.raynox.co.jp/english/dcr/egindex.htm

March 18th, 2006, 02:46 PM	#4
Carroll Lam Contributor Join Date: Apr 2005 Location: Tucson, AZ Posts: 128	The images were quick shots to get qualitative info so all the collection parameters were not recorded. It was outdoors so probably at least ND1 was activated. The f-stops ranged from 5.2 for the Z1U lens alone to 6.2 for the add-on combos. I expect to collect more quantitative and variational data soon. I live in Tucson, AZ so most of our walls are adobe not brick. 8-) Carroll Lam

March 19th, 2006, 02:09 AM	#7
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	The two Raynox lenses I've tested are the 6600 Pro and the 0.5x snap-on wide-angle converters. http://raynox.co.jp/english/video/egwidehdxl.htm The 2.2x telephoto is shown here: http://raynox.co.jp/english/video/hdrfx1/index.htm with comparison shots here: http://www.raynox.co.jp/english/dcr/...exdcr250eg.htm tom.

March 19th, 2006, 09:49 AM	#8
Bob Hart Inner Circle Join Date: Dec 2003 Location: PERTH. W.A. AUSTRALIA. Posts: 4,477	There is another approach you might try if you already have some good telephoto lenses for still-cameras. There are people building adaptors of similar principle to the P+S Technik Mini35. I have removed the groundglass from one that I made, for using lenses which have an aperture tighter than f5.6 which are not good for using via a groundglass system. On the PD150 with a 4:3 frame I can get inside the vignette on full zoom with the following combinations :- 7+ Century Optics Achromatic dioptre. Camcorder zoom at 100%. The following lenses on wide-open aperture. Tamron 300mm prime (adaptamatic version ). Nikon 500mm mirror telephoto f8. MTO 1084mm mirror telephoto f11 ( a bit soft, with 2x = very soft). Sigma 50mm - 500mm f4 - f6.3 zoom. (with 2x, a bit soft but acceptable). I fitted the arrangment up to an FX1 but found the 16:9 screen is a bit wide for maximum zoom to entirely eliminate the vignette. I think it can just fit as I have some problems with the arrangement of my design due to the prisms I used to flip the image. If you leave the image unflipped, things are simpler. The image the camcorder sees in back of the lens is upside-down unless prisms or mirrors are added into the path to flip the image upright and right-way about.