SMC DA 18-55mm AL WR reverse ring for K-30

Markovo · 07-25-2014, 10:59 PM

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What kind of reversal ring i need to use with the К-30 and the SMC DA 18-55mm AL WR? Is it even posible to do that. I want to turn it into macro lense, can it be done?

**i_trax** · 07-26-2014, 12:34 AM

I would not use this lens, has no aperture ring
I have 52 and 49mm reverse rings and use them with 50mm prime Pentax 1.4 or 1.7 M or K lenses, or older Takumar's with macro extension tubes
I purchased my reverse rings on e-bay, all made in China

Markovo · 07-26-2014, 12:40 AM

But apart from the lack оф aperture ring, it will work, right?

**kiwi_jono** · 07-26-2014, 12:56 AM

Without an aperture ring you will not be able to stop down and will be stuck with a very shallow depth of field - which would likely be a problem with most subjects.

Markovo · 07-26-2014, 01:22 AM

I see, but if i want to try it, i need 52mm reversal ring, right?

SteveB · 07-26-2014, 01:45 AM

It will work but you'll only have shutter speed and ISO to set exposure manually by trial and error.

Markovo · 07-26-2014, 01:49 AM

Thanks for the answers! I'll try it, its just $10 for the reversal ring.

Cheers!

**i_trax** · 07-26-2014, 02:30 AM

AU$3.18 posted
PK 52mm Macro Reverse Adapter Ring FOR Pentax K PK Lens Mount K100D K200D FDE | eBay

Al_Kahollick · 07-26-2014, 05:28 AM

Originally posted by kiwi_jono

Without an aperture ring you will not be able to stop down and will be stuck with a very shallow depth of field - which would likely be a problem with most subjects.

Actually, the opposite is true, you won't be able to open the lens, the diaphragm is already closed all the way in an un-mounted lens (w/o a ring, that is). You'll have to shoot in manual mode, meter as you normally would in manual, and adjust your settings accordingly. Focus will be difficult due to dark viewfinder image. DOF is pretty shallow in macro anyway, paper thin with lens wide open.

Of course, that's just my opinion, I could be wrong.

**kiwi_jono** · 07-26-2014, 03:45 PM

Originally posted by Al_Kahollick

Actually, the opposite is true, you won't be able to open the lens, the diaphragm is already closed all the way in an un-mounted lens (w/o a ring, that is). You'll have to shoot in manual mode, meter as you normally would in manual, and adjust your settings accordingly. Focus will be difficult due to dark viewfinder image. DOF is pretty shallow in macro anyway, paper thin with lens wide open.

Of course, that's just my opinion, I could be wrong.

You are not wrong - and I stand corrected! Must have been having a bad day.

With kit lens the aperture is pretty small when closed so the issue more around exposure time and diffraction ruining IQ.

Al_Kahollick · 07-26-2014, 06:50 PM

Originally posted by kiwi_jono

You are not wrong - and I stand corrected! Must have been having a bad day.

With kit lens the aperture is pretty small when closed so the issue more around exposure time and diffraction ruining IQ.

Ah, we've all been there a time or two at one point or another, the human condition!

Your point about exposure an IQ are spot on though, nice recovery

07-25-2014, 10:59 PM	#1
Markovo Senior Member Join Date: Jul 2014 Location: Bulgaria Posts: 149	SMC DA 18-55mm AL WR reverse ring for K-30 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. What kind of reversal ring i need to use with the К-30 and the SMC DA 18-55mm AL WR? Is it even posible to do that. I want to turn it into macro lense, can it be done?

07-26-2014, 05:28 AM	#9
Al_Kahollick Banned Join Date: Feb 2013 Posts: 390	Originally posted by kiwi_jono Without an aperture ring you will not be able to stop down and will be stuck with a very shallow depth of field - which would likely be a problem with most subjects. Actually, the opposite is true, you won't be able to open the lens, the diaphragm is already closed all the way in an un-mounted lens (w/o a ring, that is). You'll have to shoot in manual mode, meter as you normally would in manual, and adjust your settings accordingly. Focus will be difficult due to dark viewfinder image. DOF is pretty shallow in macro anyway, paper thin with lens wide open. Of course, that's just my opinion, I could be wrong. Last edited by Al_Kahollick; 07-26-2014 at 05:46 AM.

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07-26-2014, 12:34 AM	#2
i_trax Loyal Site Supporter Join Date: Jan 2011 Location: Perth Western Australia Photos: Gallery \| Albums Posts: 2,621	I would not use this lens, has no aperture ring I have 52 and 49mm reverse rings and use them with 50mm prime Pentax 1.4 or 1.7 M or K lenses, or older Takumar's with macro extension tubes I purchased my reverse rings on e-bay, all made in China

07-26-2014, 12:40 AM	#3
Markovo Senior Member Join Date: Jul 2014 Location: Bulgaria Posts: 149 Original Poster	But apart from the lack оф aperture ring, it will work, right?

07-26-2014, 12:56 AM	#4
kiwi_jono Loyal Site Supporter Join Date: Dec 2009 Location: Christchurch, New Zealand Photos: Gallery \| Albums Posts: 2,437	Without an aperture ring you will not be able to stop down and will be stuck with a very shallow depth of field - which would likely be a problem with most subjects.

07-26-2014, 01:22 AM	#5
Markovo Senior Member Join Date: Jul 2014 Location: Bulgaria Posts: 149 Original Poster	I see, but if i want to try it, i need 52mm reversal ring, right?

07-26-2014, 01:45 AM	#6
SteveB Veteran Member Join Date: Mar 2007 Location: U.K. Posts: 685	It will work but you'll only have shutter speed and ISO to set exposure manually by trial and error.

07-26-2014, 01:49 AM	#7
Markovo Senior Member Join Date: Jul 2014 Location: Bulgaria Posts: 149 Original Poster	Thanks for the answers! I'll try it, its just $10 for the reversal ring. Cheers!

07-26-2014, 02:30 AM	#8
i_trax Loyal Site Supporter Join Date: Jan 2011 Location: Perth Western Australia Photos: Gallery \| Albums Posts: 2,621	AU$3.18 posted PK 52mm Macro Reverse Adapter Ring FOR Pentax K PK Lens Mount K100D K200D FDE \| eBay

07-26-2014, 03:45 PM	#10
kiwi_jono Loyal Site Supporter Join Date: Dec 2009 Location: Christchurch, New Zealand Photos: Gallery \| Albums Posts: 2,437	Originally posted by Al_Kahollick Actually, the opposite is true, you won't be able to open the lens, the diaphragm is already closed all the way in an un-mounted lens (w/o a ring, that is). You'll have to shoot in manual mode, meter as you normally would in manual, and adjust your settings accordingly. Focus will be difficult due to dark viewfinder image. DOF is pretty shallow in macro anyway, paper thin with lens wide open. Of course, that's just my opinion, I could be wrong. You are not wrong - and I stand corrected! Must have been having a bad day. With kit lens the aperture is pretty small when closed so the issue more around exposure time and diffraction ruining IQ.

07-26-2014, 06:50 PM	#11
Al_Kahollick Banned Join Date: Feb 2013 Posts: 390	Originally posted by kiwi_jono You are not wrong - and I stand corrected! Must have been having a bad day. With kit lens the aperture is pretty small when closed so the issue more around exposure time and diffraction ruining IQ. Ah, we've all been there a time or two at one point or another, the human condition! Your point about exposure an IQ are spot on though, nice recovery