0.5x wide angel attachment? or C-mount wide angle?

MegaPower · 01-21-2013, 12:48 AM

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computar 6mm f/1.2
Computar Lens H0612FI for 1 2 CCD Cameras C Mount New I | eBay

Not sure if this one is better than the pentax one because many complain the pentax 6.5mm is not sharp

Last edited by MegaPower; 01-22-2013 at 01:35 AM.

MegaPower · 01-22-2013, 12:12 AM

Marshall Electronics V-4504ML 4mm f/2.5 Lens V-4504ML B&H Photo
Another cheap and may be interesting 4mm wide angle

jedie · 01-22-2013, 01:20 AM

Originally posted by MegaPower

Computar Lens H0612FI for 1 2 CCD Cameras C Mount New I | eBay

This is a CS-Mount lens, not a C-Mount!!! I didn't see any CS-Mount-Adapter, yet.

Originally posted by MegaPower

Marshall Electronics V-4504ML 4mm f/2.5 Lens V-4504ML B&H Photo

It's only for 1/3" sensor!

MegaPower · 01-22-2013, 01:38 AM

Originally posted by jedie

This is a CS-Mount lens, not a C-Mount!!! I didn't see any CS-Mount-Adapter, yet.

It's only for 1/3" sensor!

OK, thanks for the catch.
I did notice the second one is for 1/3" but it might vignette a bit?

I was also looking into cosmicar/pentax 4.8mm but they are fixed focus.

jedie · 01-22-2013, 01:48 AM

A filtered list -> Lenses| B&H Photo Video

filters are:

Mount Type:C
Focal Type:Fixed
Iris Operation:Manual Iris
Format:2/3"
Format:1"
Format:1.3"

Interested lenses are IMHO:

* Fujinon FE185C057HA-1 1.8mm f1.4 Fish-Eye
$436.95 -> Fujinon FE185C057HA-1 2/3" 1.8mm F/1.4 FE185C057HA-1 B&H

* computar H2Z0414C-MP 4-8mm f1.4
$146.95 -> computar H2Z0414C-MP 1/2" Varifocal Lens (4-8mm)

* Pentax 1/2" C Mount 8-48mm f1.0
$279.00 -> Pentax 1/2" C Mount 8-48mm f/1.0 Manual Zoom Lens C60812

* Fujinon DF6HA-1B 6mm f/1.2
$144.95 -> Fujinon DF6HA-1B 6mm f/1.2 Fixed Focal Lens DF6HA-1B B&H Photo

GibbyTheMole · 01-22-2013, 04:10 AM

I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing.

Erich_H · 01-22-2013, 08:46 AM

Originally posted by GibbyTheMole

I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing.

All C-mounts I have met [wide/tele/zoom] have covered the full Q sensor (=no vignetting)....thanks/Erik

GibbyTheMole · 01-22-2013, 11:02 AM

Originally posted by Erich_H

All C-mounts I have met [wide/tele/zoom] have covered the full Q sensor (=no vignetting)

Good deal... Thanks for the info! - Bob :-)

devorama · 01-22-2013, 12:12 PM

Originally posted by GibbyTheMole

I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing.

Since the Q sensor is 1/2.3", it should be covered by C-mount lenses that are 1/2, 2/3, or 1". But there will likely be some vignetting with a 1/3" lens.

GibbyTheMole · 01-22-2013, 12:20 PM

Originally posted by devorama

Since the Q sensor is 1/2.3", it should be covered by C-mount lenses that are 1/2, 2/3, or 1". But there will likely be some vignetting with a 1/3" lens.

Good info. I'll stay away from the 1/3" lenses. You guys are a font of information.

Erich_H · 01-23-2013, 09:33 AM

Originally posted by GibbyTheMole

Good info. I'll stay away from the 1/3" lenses. You guys are a font of information.

If you see a C-mount labeled as 1/3" it's probably a mislabeled CS-mount lens
which you can't use anyways...so there will be no vignetting...

Thanks/Erik

[see example below of mislabeled CS-mount]

srsly · 10-19-2020, 10:08 AM - **1 Like**

Originally posted by nater

I can give some background on the phrase "baby death". Century Optics, a division of Schneider Optics, came out with a very well regarded 37mm fisheye adapter that was nicknamed "baby death" by the skateboarder community because it did such a great job for their videos.

I'm a long time lurker on the forum, but this post has been nagging me for seven years. Today I finally mustered the courage to register because I simply want to point out that it was called the Baby Death because it was a smaller version of the Death Lens.

reh321 · 10-19-2020, 01:42 PM - **1 Like**

Originally posted by MegaPower

I found some kenko 0.5x wide angel attachment, which you can put it like a filter.
Are these good or rubbish like other cheap brand?

Or it will be better to go with C-mount wide angle lens? suggestion? Most of the C-mount lenses have 5MP only that's what worries me.

I don't need utlra sharp picture but I want something better than a DC.
02 zoom lens is out of my budget

I have owned several of the those front converters, and frankly, none of them has worked very well.

**kwb** · 10-19-2020, 03:58 PM - **1 Like**

Originally posted by srsly

I'm a long time lurker on the forum, but this post has been nagging me for seven years. Today I finally mustered the courage to register because I simply want to point out that it was called the Baby Death because it was a smaller version of the Death Lens.

Welcome srsly, you waited for a long time didn't you!

It seems like there's still a demand for the original Death lens. Petition · SAVE THE CENTURY OPTICS MK1 FISHEYE! · Change.org
I cannot find the spec of Baby Death from Century Optics, I can only guess that it's not as wide as 0.3x if it was smaller than the Death lens. Thanks for the trivia!

01-22-2013, 01:48 AM	#50
jedie Junior Member Join Date: Mar 2011 Location: Germany Posts: 46	A filtered list -> Lenses\| B&H Photo Video filters are: Mount Type:C Focal Type:Fixed Iris Operation:Manual Iris Format:2/3" Format:1" Format:1.3" Interested lenses are IMHO: * Fujinon FE185C057HA-1 1.8mm f1.4 Fish-Eye $436.95 -> Fujinon FE185C057HA-1 2/3" 1.8mm F/1.4 FE185C057HA-1 B&H * computar H2Z0414C-MP 4-8mm f1.4 $146.95 -> computar H2Z0414C-MP 1/2" Varifocal Lens (4-8mm) * Pentax 1/2" C Mount 8-48mm f1.0 $279.00 -> Pentax 1/2" C Mount 8-48mm f/1.0 Manual Zoom Lens C60812 * Fujinon DF6HA-1B 6mm f/1.2 $144.95 -> Fujinon DF6HA-1B 6mm f/1.2 Fixed Focal Lens DF6HA-1B B&H Photo

01-23-2013, 09:33 AM	#56
Erich_H Senior Member Join Date: Apr 2012 Photos: Gallery Posts: 176	1/3" C-mounts ??? Originally posted by GibbyTheMole Good info. I'll stay away from the 1/3" lenses. You guys are a font of information. If you see a C-mount labeled as 1/3" it's probably a mislabeled CS-mount lens which you can't use anyways...so there will be no vignetting... Thanks/Erik [see example below of mislabeled CS-mount] Attached Images Last edited by Erich_H; 01-23-2013 at 09:58 AM.

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01-21-2013, 12:48 AM	#46
MegaPower Veteran Member Join Date: May 2010 Location: Hong Kong / Irvine, CA Photos: Gallery \| Albums Posts: 636 Original Poster	Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. computar 6mm f/1.2 Computar Lens H0612FI for 1 2 CCD Cameras C Mount New I \| eBay Not sure if this one is better than the pentax one because many complain the pentax 6.5mm is not sharp Last edited by MegaPower; 01-22-2013 at 01:35 AM.

01-22-2013, 12:12 AM	#47
MegaPower Veteran Member Join Date: May 2010 Location: Hong Kong / Irvine, CA Photos: Gallery \| Albums Posts: 636 Original Poster	Marshall Electronics V-4504ML 4mm f/2.5 Lens V-4504ML B&H Photo Another cheap and may be interesting 4mm wide angle

01-22-2013, 01:20 AM	#48
jedie Junior Member Join Date: Mar 2011 Location: Germany Posts: 46	Originally posted by MegaPower Computar Lens H0612FI for 1 2 CCD Cameras C Mount New I \| eBay This is a CS-Mount lens, not a C-Mount!!! I didn't see any CS-Mount-Adapter, yet. Originally posted by MegaPower Marshall Electronics V-4504ML 4mm f/2.5 Lens V-4504ML B&H Photo It's only for 1/3" sensor!

01-22-2013, 01:38 AM	#49
MegaPower Veteran Member Join Date: May 2010 Location: Hong Kong / Irvine, CA Photos: Gallery \| Albums Posts: 636 Original Poster	Originally posted by jedie This is a CS-Mount lens, not a C-Mount!!! I didn't see any CS-Mount-Adapter, yet. It's only for 1/3" sensor! OK, thanks for the catch. I did notice the second one is for 1/3" but it might vignette a bit? I was also looking into cosmicar/pentax 4.8mm but they are fixed focus.

01-22-2013, 04:10 AM	#51
GibbyTheMole Veteran Member Join Date: Nov 2009 Location: Iowa Photos: Albums Posts: 2,275	I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing.

01-22-2013, 08:46 AM	#52
Erich_H Senior Member Join Date: Apr 2012 Photos: Gallery Posts: 176	Originally posted by GibbyTheMole I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing. All C-mounts I have met [wide/tele/zoom] have covered the full Q sensor (=no vignetting)....thanks/Erik

01-22-2013, 11:02 AM	#53
GibbyTheMole Veteran Member Join Date: Nov 2009 Location: Iowa Photos: Albums Posts: 2,275	Originally posted by Erich_H All C-mounts I have met [wide/tele/zoom] have covered the full Q sensor (=no vignetting) Good deal... Thanks for the info! - Bob :-)

01-22-2013, 12:12 PM	#54
devorama Veteran Member Join Date: Apr 2009 Location: Chicago, IL Photos: Gallery \| Albums Posts: 638	Originally posted by GibbyTheMole I just noticed the C-mount lens I bought from eBay is for 2/3"... Is this a good or a bad thing as far as vignetting? I'm new to the whole C-mount lens thing. Since the Q sensor is 1/2.3", it should be covered by C-mount lenses that are 1/2, 2/3, or 1". But there will likely be some vignetting with a 1/3" lens.

01-22-2013, 12:20 PM	#55
GibbyTheMole Veteran Member Join Date: Nov 2009 Location: Iowa Photos: Albums Posts: 2,275	Originally posted by devorama Since the Q sensor is 1/2.3", it should be covered by C-mount lenses that are 1/2, 2/3, or 1". But there will likely be some vignetting with a 1/3" lens. Good info. I'll stay away from the 1/3" lenses. You guys are a font of information.

10-19-2020, 10:08 AM - 1 Like	#57
srsly New Member Join Date: Oct 2020 Posts: 1	Originally posted by nater I can give some background on the phrase "baby death". Century Optics, a division of Schneider Optics, came out with a very well regarded 37mm fisheye adapter that was nicknamed "baby death" by the skateboarder community because it did such a great job for their videos. I'm a long time lurker on the forum, but this post has been nagging me for seven years. Today I finally mustered the courage to register because I simply want to point out that it was called the Baby Death because it was a smaller version of the Death Lens.

10-19-2020, 01:42 PM - 1 Like	#58
reh321 Pentaxian Join Date: Nov 2014 Location: South Bend, IN, USA Photos: Gallery \| Albums Posts: 23,180	Originally posted by MegaPower I found some kenko 0.5x wide angel attachment, which you can put it like a filter. Are these good or rubbish like other cheap brand? Or it will be better to go with C-mount wide angle lens? suggestion? Most of the C-mount lenses have 5MP only that's what worries me. I don't need utlra sharp picture but I want something better than a DC. 02 zoom lens is out of my budget I have owned several of the those front converters, and frankly, none of them has worked very well.

10-19-2020, 03:58 PM - 1 Like	#59
kwb Site Supporter Join Date: Mar 2015 Location: Pacific North West Photos: Gallery \| Albums Posts: 1,223	Originally posted by srsly I'm a long time lurker on the forum, but this post has been nagging me for seven years. Today I finally mustered the courage to register because I simply want to point out that it was called the Baby Death because it was a smaller version of the Death Lens. Welcome srsly, you waited for a long time didn't you! It seems like there's still a demand for the original Death lens. Petition · SAVE THE CENTURY OPTICS MK1 FISHEYE! · Change.org I cannot find the spec of Baby Death from Century Optics, I can only guess that it's not as wide as 0.3x if it was smaller than the Death lens. Thanks for the trivia!