Raynox DCR-150 in Finite Setup

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ojd01
Posts: 49
Joined: Sun Nov 15, 2020 10:56 am
Location: Teesside, Middlesbrough, UK

Raynox DCR-150 in Finite Setup

Post by ojd01 »

Hello!

I have been doing some research and I have found that using a reversed Raynox DCR-150 in your finite setup can improve IQ overall.

What does anyone think about this?

I am shooting 3.7x-10x at the moment and want to do some lower magnifications too. I use 160mm finite objectives most of the time, if not, 210mm.

Best Regards

Owen
Instagram: @ojd_photo

RobertOToole
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Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
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Re: Raynox DCR-150 in Finite Setup

Post by RobertOToole »

ojd01 wrote:
Sun Mar 14, 2021 2:01 pm
Hello!

I have been doing some research and I have found that using a reversed Raynox DCR-150 in your finite setup can improve IQ overall.

What does anyone think about this?

I am shooting 3.7x-10x at the moment and want to do some lower magnifications too. I use 160mm finite objectives most of the time, if not, 210mm.

Best Regards

Owen
Only experience I have using a finite objective with a tube lens, is the Lomo 3,7 + 120mm line scan lens. The performance in this case was excellent. See more here:

https://www.closeuphotography.com/lomo-3-7x-and-sr120
_PM-Screen Shot 2021-03-14 at 2.40.13 PM.jpg
The DCR-150, for others that don't know, is a +4.8 diopter lens made by Raynox. Looking at tests made with the Raynox I found that results were best normally mounted but its usually best to check for yourself by testing.

From my site (https://www.closeuphotography.com/raynox-tube-lens):

RAYNOX DCR-150 +4.8 208MM LENS
Also sold labeled as:
Macroscopic Lens Model M-150,
Model CM-2000 1.5X
+4.8 diopter
Focal length: 208mm
Optical Design: 3 element / 2 group, Hi-index, multi-coated optical glass element, triplet-type lens
Filter threads: 49mm x 0.75
Lens mount: 43mm x 0.75


Raynox also makes the DCR-250 +8 lens, also specs from my site. This lens might be better as a tube lens if you are looking to push down the magnification of a finite objective.

RAYNOX DCR-250 +8 125MM LENS
Also sold labeled as:
Raynox DCR-250 2.5x Super Macro Lens
RAYNOX MACROSCOPIC LENS MODEL M-250
Raynox 35mm MacroExplorer Model CM-2000 2.5X lens
+8 diopter
Focal length: 125mm
Optical Design: 3 element / 2 group, Hi-index, multi-coated optical glass element, triplet-type lens
Filter threads: 49mm x 0.75
Lens mount: 43mm x 0.75

If you don't own a Raynox already I would think twice about buying one just to use as a tube lens since I simple Schneider Componon works just as well or better and makes a nice macro/normal taking lens also. See this test:

TUBE LENS TEST: COMPONON-S 5.6/135 VS RAYNOX 125MM

https://www.closeuphotography.com/135-c ... ox-dcr-250

ojd01
Posts: 49
Joined: Sun Nov 15, 2020 10:56 am
Location: Teesside, Middlesbrough, UK

Re: Raynox DCR-150 in Finite Setup

Post by ojd01 »

RobertOToole wrote:
Sun Mar 14, 2021 2:53 pm
ojd01 wrote:
Sun Mar 14, 2021 2:01 pm
Hello!

I have been doing some research and I have found that using a reversed Raynox DCR-150 in your finite setup can improve IQ overall.

What does anyone think about this?

I am shooting 3.7x-10x at the moment and want to do some lower magnifications too. I use 160mm finite objectives most of the time, if not, 210mm.

Best Regards

Owen
Only experience I have using a finite objective with a tube lens, is the Lomo 3,7 + 120mm line scan lens. The performance in this case was excellent. See more here:

https://www.closeuphotography.com/lomo-3-7x-and-sr120

_PM-Screen Shot 2021-03-14 at 2.40.13 PM.jpg

The DCR-150, for others that don't know, is a +4.8 diopter lens made by Raynox. Looking at tests made with the Raynox I found that results were best normally mounted but its usually best to check for yourself by testing.

From my site (https://www.closeuphotography.com/raynox-tube-lens):

RAYNOX DCR-150 +4.8 208MM LENS
Also sold labeled as:
Macroscopic Lens Model M-150,
Model CM-2000 1.5X
+4.8 diopter
Focal length: 208mm
Optical Design: 3 element / 2 group, Hi-index, multi-coated optical glass element, triplet-type lens
Filter threads: 49mm x 0.75
Lens mount: 43mm x 0.75


Raynox also makes the DCR-250 +8 lens, also specs from my site. This lens might be better as a tube lens if you are looking to push down the magnification of a finite objective.

RAYNOX DCR-250 +8 125MM LENS
Also sold labeled as:
Raynox DCR-250 2.5x Super Macro Lens
RAYNOX MACROSCOPIC LENS MODEL M-250
Raynox 35mm MacroExplorer Model CM-2000 2.5X lens
+8 diopter
Focal length: 125mm
Optical Design: 3 element / 2 group, Hi-index, multi-coated optical glass element, triplet-type lens
Filter threads: 49mm x 0.75
Lens mount: 43mm x 0.75

If you don't own a Raynox already I would think twice about buying one just to use as a tube lens since I simple Schneider Componon works just as well or better and makes a nice macro/normal taking lens also. See this test:

TUBE LENS TEST: COMPONON-S 5.6/135 VS RAYNOX 125MM

https://www.closeuphotography.com/135-c ... ox-dcr-250
Hey Robert! Thank you so much for your reply.

I am looking into the Schneider 120mm now - I think I viewed this post ages ago!

Daft question probably - are the test images from a circuit board? I have always wanted to know so I can get something similar.

I will look into the Schneider Componon too as a tube lens, good job I asked on here!
Instagram: @ojd_photo

JKT
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Joined: Fri Oct 28, 2011 9:29 am
Location: Finland
Contact:

Re: Raynox DCR-150 in Finite Setup

Post by JKT »

The combination of Raynox DCR-150 and LOMO 3.7x did beat both Schneider-Kreuznach Componon 180/5.6 and 210/5.6 in my tests. It seemed to be sharp to the edges of full frame image with magnification 6.37. That was with Canon RP so the pixel density was not very high. Normal direction for Raynox. Schneider-Kreuznach Componon-S might or might not be better.

With the Raynox DCR-250 the sharp image circle was about 30mm with somewhat soft corners and smoothly increasing vignetting. Magnification was 3.77, so that was pretty much nominal magnification.

RobertOToole
Posts: 2627
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
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Re: Raynox DCR-150 in Finite Setup

Post by RobertOToole »

ojd01 wrote:
Sun Mar 14, 2021 3:12 pm

Hey Robert! Thank you so much for your reply.

I am looking into the Schneider 120mm now - I think I viewed this post ages ago!

Daft question probably - are the test images from a circuit board? I have always wanted to know so I can get something similar.
Silicon wafer!

I bought that one in the wafer Lomo test as "perfect" from France, no scratches supposedly and as new, and it showed up badly scratched so I asked for a new one. He refused and refunded me instead. The scratched disk is now one of my favorites! #-o =D>

The seller in France now seems to mostly sell chips now, from cut-up wafers, and no more full wafers.

Best,

Robert

jurkovicovic
Posts: 81
Joined: Sun Jul 16, 2017 11:16 am

Re: Raynox DCR-150 in Finite Setup

Post by jurkovicovic »

here is my experience - finite objective + tubelens.

https://www.photomacrography.net/forum/ ... 25&t=43152
canon EOS *

seta666
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Joined: Fri Mar 19, 2010 8:50 am
Location: Castellon, Spain

Re: Raynox DCR-150 in Finite Setup

Post by seta666 »

After seeing the lomo 3.7x results it looks like something worth trying; I will try to see if it can work on a microscope too.

With the raynox you also have to place it close to the camera or focused to infinity? how does it works best?

ojd01
Posts: 49
Joined: Sun Nov 15, 2020 10:56 am
Location: Teesside, Middlesbrough, UK

Re: Raynox DCR-150 in Finite Setup

Post by ojd01 »

JKT wrote:
Sun Mar 14, 2021 4:09 pm
The combination of Raynox DCR-150 and LOMO 3.7x did beat both Schneider-Kreuznach Componon 180/5.6 and 210/5.6 in my tests. It seemed to be sharp to the edges of full frame image with magnification 6.37. That was with Canon RP so the pixel density was not very high. Normal direction for Raynox. Schneider-Kreuznach Componon-S might or might not be better.

With the Raynox DCR-250 the sharp image circle was about 30mm with somewhat soft corners and smoothly increasing vignetting. Magnification was 3.77, so that was pretty much nominal magnification.
Hello!

Did you have extension tubes added to the camera, then Raynox, then objective? To make it up to 150mm?

Kind Regards

Owen
Instagram: @ojd_photo

JKT
Posts: 420
Joined: Fri Oct 28, 2011 9:29 am
Location: Finland
Contact:

Re: Raynox DCR-150 in Finite Setup

Post by JKT »

ojd01 wrote:
Mon Mar 15, 2021 3:05 am
Did you have extension tubes added to the camera, then Raynox, then objective? To make it up to 150mm?
I used it as if it were an infinite objective. The Raynox was focal length away from the sensor and the LOMO was right after it.

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