Ranyox 250 with Pentax 100 2.8 WR

bellavida · 09-02-2013, 02:58 PM

Hello all,

I recently acquired the Pentax 100 2.8 WR lens and would like to use the Raynox 250 along with it. Since the raynox is attached to the universal adapter for
52mm to 67mm filters, do I need to get a separate adapter so I can use it with my lens? Is there a way to remove the universal adapter from the raynox so I can attach it directly to the Pentax?

Thanks for any suggestions!

Bella

photolady95 · 09-02-2013, 03:10 PM

What is the filter size on your lens? If 49, just buy a step up ring 49 to 52, to fit the lens, and then you can just clip the DCR-250 onto that.

bellavida · 09-03-2013, 07:35 PM

The filter size on the Pentax is 49mm but the mounting thread of the Raynox is actually 43 mm, so wouldn't I need a step-down ring? Thanks for the quick reply!

photolady95 · 09-03-2013, 07:40 PM

I was saying that since your lens is only 49mm you could buy a step up ring 49 to 52, then just use the clip that comes with the DCR-250 and clip it to the step up ring.. That's what I did because I have two lenses that are 49mm. Or you could do it the way you said. I needed the ring because I have closeup lenses and I wanted to use them on a new lens and the closeups are 55mm So I bought a 49 to 55mm step up ring. That way I can use either the DCR 250 or my closeup lenses..

bellavida · 09-04-2013, 06:02 AM

Originally posted by photolady

I was saying that since your lens is only 49mm you could buy a step up ring 49 to 52, then just use the clip that comes with the DCR-250 and clip it to the step up ring.. That's what I did because I have two lenses that are 49mm. Or you could do it the way you said. I needed the ring because I have closeup lenses and I wanted to use them on a new lens and the closeups are 55mm So I bought a 49 to 55mm step up ring. That way I can use either the DCR 250 or my closeup lenses..

Thanks so much for clearing that up for me

I also want to look into getting even closer macros. The Pentax 100 does not have an aperture ring, so would it be worth stacking it with a fast prime like 50/1.8 or is there a better way to get more magnification while still keeping up the IQ. I want to get really close shots of water drops and snowflakes in the winter.

**boriscleto** · 09-04-2013, 06:18 AM

https://www.pentaxforums.com/forums/pentax-lens-articles/152336-cheap-macro-b...lose-work.html

photolady95 · 09-04-2013, 08:28 AM

Boris gave it to you. Over slept this morning. But I wanted to let you know that you can't use AF for doing macro, in case you didn't already know this.

everydaylife · 09-04-2013, 05:17 PM

Originally I was thinking of using extension tubes for macro but since the raynox adaptors are at a good price at the moment I will get I have to get either the 150 or 250.
Can someone recommend which is the most suitable to use with the k135 lens. It takes a 58mm filter so the adaptor fits but I am wondering if the 250 will have too narrow depth of field making it difficult to use handheld. Although its close focus is not good at 150 cm so maybe the 250 would be ok.

Any advice would be much appreciated

photolady95 · 09-04-2013, 05:22 PM

The DCR-150 would work better on your 135mm than the DCR-250 which is better on lenses below 100mm. The DOF on the 250 is really thin.

EDIT: Read throught these pages. The first few pages talk about the different Raynox adapters.

https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html

everydaylife · 09-04-2013, 05:32 PM

Originally posted by photolady

The DCR-150 would work better on your 135mm than the DCR-250 which is better on lenses below 100mm. The DOF on the 250 is really thin.

EDIT: Read throught these pages. The first few pages talk about the different Raynox adapters.

https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html

Thanks for the advice and the link

photolady95 · 09-04-2013, 05:41 PM

Okay, I have one more link for you. Read post #20 from Audiobomber:

https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/65837-dcr-150-macro-2.html

This is the thread I started when I wanted to buy one of those adapters. It has some good info there as it explains about the differences between the two adapters, also.

09-02-2013, 02:58 PM	#1
bellavida Junior Member Join Date: Apr 2013 Posts: 32	Ranyox 250 with Pentax 100 2.8 WR Hello all, I recently acquired the Pentax 100 2.8 WR lens and would like to use the Raynox 250 along with it. Since the raynox is attached to the universal adapter for 52mm to 67mm filters, do I need to get a separate adapter so I can use it with my lens? Is there a way to remove the universal adapter from the raynox so I can attach it directly to the Pentax? Thanks for any suggestions! Bella

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09-02-2013, 03:10 PM	#2
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	What is the filter size on your lens? If 49, just buy a step up ring 49 to 52, to fit the lens, and then you can just clip the DCR-250 onto that.

09-03-2013, 07:35 PM	#3
bellavida Junior Member Join Date: Apr 2013 Posts: 32 Original Poster	The filter size on the Pentax is 49mm but the mounting thread of the Raynox is actually 43 mm, so wouldn't I need a step-down ring? Thanks for the quick reply!

09-03-2013, 07:40 PM	#4
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	I was saying that since your lens is only 49mm you could buy a step up ring 49 to 52, then just use the clip that comes with the DCR-250 and clip it to the step up ring.. That's what I did because I have two lenses that are 49mm. Or you could do it the way you said. I needed the ring because I have closeup lenses and I wanted to use them on a new lens and the closeups are 55mm So I bought a 49 to 55mm step up ring. That way I can use either the DCR 250 or my closeup lenses..

09-04-2013, 06:02 AM	#5
bellavida Junior Member Join Date: Apr 2013 Posts: 32 Original Poster	Originally posted by photolady I was saying that since your lens is only 49mm you could buy a step up ring 49 to 52, then just use the clip that comes with the DCR-250 and clip it to the step up ring.. That's what I did because I have two lenses that are 49mm. Or you could do it the way you said. I needed the ring because I have closeup lenses and I wanted to use them on a new lens and the closeups are 55mm So I bought a 49 to 55mm step up ring. That way I can use either the DCR 250 or my closeup lenses.. Thanks so much for clearing that up for me I also want to look into getting even closer macros. The Pentax 100 does not have an aperture ring, so would it be worth stacking it with a fast prime like 50/1.8 or is there a better way to get more magnification while still keeping up the IQ. I want to get really close shots of water drops and snowflakes in the winter.

09-04-2013, 06:18 AM	#6
boriscleto Loyal Site Supporter Join Date: Dec 2009 Location: North Syracuse, NY Photos: Gallery Posts: 16,475	https://www.pentaxforums.com/forums/pentax-lens-articles/152336-cheap-macro-b...lose-work.html

09-04-2013, 08:28 AM	#7
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	Boris gave it to you. Over slept this morning. But I wanted to let you know that you can't use AF for doing macro, in case you didn't already know this.

09-04-2013, 05:17 PM	#8
everydaylife Senior Member Join Date: Sep 2011 Photos: Gallery \| Albums Posts: 268	Originally I was thinking of using extension tubes for macro but since the raynox adaptors are at a good price at the moment I will get I have to get either the 150 or 250. Can someone recommend which is the most suitable to use with the k135 lens. It takes a 58mm filter so the adaptor fits but I am wondering if the 250 will have too narrow depth of field making it difficult to use handheld. Although its close focus is not good at 150 cm so maybe the 250 would be ok. Any advice would be much appreciated

09-04-2013, 05:22 PM	#9
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	The DCR-150 would work better on your 135mm than the DCR-250 which is better on lenses below 100mm. The DOF on the 250 is really thin. EDIT: Read throught these pages. The first few pages talk about the different Raynox adapters. https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html

09-04-2013, 05:32 PM	#10
everydaylife Senior Member Join Date: Sep 2011 Photos: Gallery \| Albums Posts: 268	Originally posted by photolady The DCR-150 would work better on your 135mm than the DCR-250 which is better on lenses below 100mm. The DOF on the 250 is really thin. EDIT: Read throught these pages. The first few pages talk about the different Raynox adapters. https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html Thanks for the advice and the link

09-04-2013, 05:41 PM	#11
photolady95 Otis Memorial Pentaxian Join Date: May 2009 Location: Cruising the forum watching his back Photos: Gallery \| Albums Posts: 12,712	Okay, I have one more link for you. Read post #20 from Audiobomber: https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/65837-dcr-150-macro-2.html This is the thread I started when I wanted to buy one of those adapters. It has some good info there as it explains about the differences between the two adapters, also.