Win a Pentax Limited Lens: Raffle Now Live!

**ismaelg** · 05-20-2010, 07:02 PM

Hi,

Does Pentax makes (or has ever made) a 1:1 macro lens? Either K mount or m42?

Thanks,

Raybo · 05-20-2010, 07:09 PM

https://www.pentaxforums.com/lensreviews/SMC-Pentax-A-100mm-F2.8-Macro-Lens.html

yeatzee · 05-20-2010, 07:16 PM

Pentax has made several.

Pentax DFA 100mm, Pentax DFA 50mm, Pentax A 50mm, Pentax A 100mm, Pentax A 200mm, Pentax FA 50mm, Pentax FA 100mm, Pentax FA 200mm, etc etc.

raymeedc · 05-20-2010, 09:06 PM

Originally posted by ismaelg

or m42?

The original M42 Preset Takumar 50mm macro is 1:1 (the later Super & S-M-C M42 Takumars were only 1:2, for some reason).

stover98074 · 05-20-2010, 09:24 PM

I use a M42 Pentax Auto Bellows. I use it with enlarging lenses and can get well above 1:1.

If interested, you can read about it at this link - Inexpensive Macro Photography

The photo on the top was with an El Nikkor 105 on the bellows over the past few days. The second photo was taken with Fujinon 50 enlarging lens on a bellows. Both shots with hand held flash.

newarts · 05-21-2010, 04:39 AM

I'm pretty sure the Pentax-A 50mm macro is only 1:2 magnification.

I've had a couple Macro-Takumar 1:1's and can recommend that lens.

Dave

on edit: there are a few Macro-Takumar 50:4's on ebay at the present time. They often sell for less than $100. The 1:1 version makes no mention of SMC or Coatings, and has two aperture rings at the front of the lens.

matoqui · 05-21-2010, 01:53 PM

In addition the above, the DA35/2.8 is 1:1 macro.

PENTAX DA Limited Macro Lens for Digital SLRs and Compacts: smc PENTAX DA 35mm F2.8 Macro Limited

Ira · 05-21-2010, 03:40 PM

Originally posted by matoqui

In addition the above, the DA35/2.8 is 1:1 macro.

PENTAX DA Limited Macro Lens for Digital SLRs and Compacts: smc PENTAX DA 35mm F2.8 Macro Limited

How close do you have to get with a 35 for macro!?

I'm curious, because there's obviously a good reason this configuration is available.

At first glance, it just seems like you would have to be incredibly close.

Is it the FOV/perspective that makes this a desirable FL for macro?

deadwolfbones · 05-21-2010, 03:51 PM

That close.

yeatzee · 05-21-2010, 05:03 PM

Originally posted by Ira

How close do you have to get with a 35 for macro!?

I'm curious, because there's obviously a good reason this configuration is available.

At first glance, it just seems like you would have to be incredibly close.

Is it the FOV/perspective that makes this a desirable FL for macro?

I think its not so much that 35mm is a desirable FL for macro, but rather how versatile the lens is itself. It poses as a roughly "normal" FL on APSC *AND* doubles as a 1:1 macro. The only other way to get close to that is with a 50mm macro on a FF

Abbazz · 05-21-2010, 07:35 PM

A 35mm macro lens like the DA35 is not really meant to take pictures of insects or other small critters because the lens to subject distance at 1:1 magnification is too short for most animals (2.3cm, that's a bit less than 1"). The D FA 100 would be more appropriate for this purpose, with its comfortable lens to subject distance of 12.9cm at 1:1.

Macro lenses with short focal lengths like the DA35 are better suited for document reproduction and photography of small objects. It would require a huge studio to photography a painting with a 100mm lens, but it's possible to use a 35mm lens for that purpose in a normal sized room. As the DA35 has good field flatness, great resolution, low chromatic aberrations and almost no distortion when used at normal reproduction distances, it's a perfect repro lens.

Cheeers!

Abbazz

Mechan1k · 05-22-2010, 08:42 AM

I have yet to test my Macro-Takumar 50mm f/4 (which i understand is a 1:1) .... also have a set of M42 extension tubes as well ... which i might muck around with as well and see how close i can get.

Blue · 05-22-2010, 09:18 AM

Originally posted by Abbazz

A 35mm macro lens like the DA35 is not really meant to take pictures of insects or other small critters because the lens to subject distance at 1:1 magnification is too short for most animals (2.3cm, that's a bit less than 1"). The D FA 100 would be more appropriate for this purpose, with its comfortable lens to subject distance of 12.9cm at 1:1.

Macro lenses with short focal lengths like the DA35 are better suited for document reproduction and photography of small objects. It would require a huge studio to photography a painting with a 100mm lens, but it's possible to use a 35mm lens for that purpose in a normal sized room. As the DA35 has good field flatness, great resolution, low chromatic aberrations and almost no distortion when used at normal reproduction distances, it's a perfect repro lens.

Cheeers!

Abbazz

Insect Macro images with the DA 35mm ltd. It is more hand holdable than tele macro lenses.

Ben_Edict · 05-22-2010, 12:50 PM

Originally posted by newarts

I'm pretty sure the Pentax-A 50mm macro is only 1:2 magnification.

Dave, that's true. The A 50 needs an extension tube to reach 1:1 - I just confirmed that on my copy.

Ben

Mike Cash · 05-22-2010, 05:22 PM

Originally posted by raymeedc

The original M42 Preset Takumar 50mm macro is 1:1 (the later Super & S-M-C M42 Takumars were only 1:2, for some reason).

The reason is the change from a preset aperture design. When they included the aperture actuating bits-n-pieces it ate up quite a bit of space that the previous design had been able to use for extension.

05-20-2010, 07:02 PM	#1
ismaelg Loyal Site Supporter Join Date: Apr 2009 Location: Puerto Rico Photos: Gallery Posts: 2,685	1:1 macro lenses Hi, Does Pentax makes (or has ever made) a 1:1 macro lens? Either K mount or m42? Thanks,

05-20-2010, 09:24 PM	#5
stover98074 Senior Member Join Date: Apr 2010 Location: Seattle Photos: Gallery Posts: 153	M42 Asahi Pentax Auto Bellows I use a M42 Pentax Auto Bellows. I use it with enlarging lenses and can get well above 1:1. If interested, you can read about it at this link - Inexpensive Macro Photography The photo on the top was with an El Nikkor 105 on the bellows over the past few days. The second photo was taken with Fujinon 50 enlarging lens on a bellows. Both shots with hand held flash. Last edited by stover98074; 05-23-2010 at 01:20 PM.

05-21-2010, 04:39 AM	#6
newarts Inactive Account Join Date: Dec 2008 Location: Ames, Iowa, USA Photos: Albums Posts: 2,965	I'm pretty sure the Pentax-A 50mm macro is only 1:2 magnification. I've had a couple Macro-Takumar 1:1's and can recommend that lens. Dave on edit: there are a few Macro-Takumar 50:4's on ebay at the present time. They often sell for less than $100. The 1:1 version makes no mention of SMC or Coatings, and has two aperture rings at the front of the lens. Last edited by newarts; 05-21-2010 at 05:22 AM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Macro lenses -- AF or MF?	K-9	Pentax SLR Lens Discussion	19	08-13-2009 08:02 PM
For Sale - Sold: Everything Macro: Bellows, Ext. Tubes, Macro Lenses	MikeDubU	Sold Items	12	03-14-2009 07:10 PM
Macro Lenses- Old vs New	petez	Pentax SLR Lens Discussion	8	05-01-2008 09:04 AM
D-FA 100/2.8 Macro vs other macro lenses?	jankok	Pentax SLR Lens Discussion	12	10-25-2007 09:01 AM
Macro Lenses	omegav6i	Pentax SLR Lens Discussion	16	05-02-2007 05:25 AM

05-20-2010, 07:09 PM	#2
Raybo Veteran Member Join Date: Dec 2007 Posts: 872	https://www.pentaxforums.com/lensreviews/SMC-Pentax-A-100mm-F2.8-Macro-Lens.html

05-20-2010, 07:16 PM	#3
yeatzee Veteran Member Join Date: Feb 2009 Location: Temecula Photos: Gallery \| Albums Posts: 3,675	Pentax has made several. Pentax DFA 100mm, Pentax DFA 50mm, Pentax A 50mm, Pentax A 100mm, Pentax A 200mm, Pentax FA 50mm, Pentax FA 100mm, Pentax FA 200mm, etc etc.

05-20-2010, 09:06 PM	#4
raymeedc Veteran Member Join Date: Nov 2007 Location: Brooklyn, New York Posts: 951	Originally posted by ismaelg or m42? The original M42 Preset Takumar 50mm macro is 1:1 (the later Super & S-M-C M42 Takumars were only 1:2, for some reason).

05-21-2010, 01:53 PM	#7
matoqui Senior Member Join Date: Jul 2009 Location: Puerto Rico Photos: Gallery Posts: 115	In addition the above, the DA35/2.8 is 1:1 macro. PENTAX DA Limited Macro Lens for Digital SLRs and Compacts: smc PENTAX DA 35mm F2.8 Macro Limited

05-21-2010, 03:40 PM	#8
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	Originally posted by matoqui In addition the above, the DA35/2.8 is 1:1 macro. PENTAX DA Limited Macro Lens for Digital SLRs and Compacts: smc PENTAX DA 35mm F2.8 Macro Limited How close do you have to get with a 35 for macro!? I'm curious, because there's obviously a good reason this configuration is available. At first glance, it just seems like you would have to be incredibly close. Is it the FOV/perspective that makes this a desirable FL for macro?

05-21-2010, 03:51 PM	#9
deadwolfbones Veteran Member Join Date: Sep 2007 Location: Santa Fe, NM Posts: 7,451	That close.

05-21-2010, 05:03 PM	#10
yeatzee Veteran Member Join Date: Feb 2009 Location: Temecula Photos: Gallery \| Albums Posts: 3,675	Originally posted by Ira How close do you have to get with a 35 for macro!? I'm curious, because there's obviously a good reason this configuration is available. At first glance, it just seems like you would have to be incredibly close. Is it the FOV/perspective that makes this a desirable FL for macro? I think its not so much that 35mm is a desirable FL for macro, but rather how versatile the lens is itself. It poses as a roughly "normal" FL on APSC AND doubles as a 1:1 macro. The only other way to get close to that is with a 50mm macro on a FF

05-21-2010, 07:35 PM	#11
Abbazz Pentaxian Join Date: Nov 2006 Location: Jakarta Posts: 667	A 35mm macro lens like the DA35 is not really meant to take pictures of insects or other small critters because the lens to subject distance at 1:1 magnification is too short for most animals (2.3cm, that's a bit less than 1"). The D FA 100 would be more appropriate for this purpose, with its comfortable lens to subject distance of 12.9cm at 1:1. Macro lenses with short focal lengths like the DA35 are better suited for document reproduction and photography of small objects. It would require a huge studio to photography a painting with a 100mm lens, but it's possible to use a 35mm lens for that purpose in a normal sized room. As the DA35 has good field flatness, great resolution, low chromatic aberrations and almost no distortion when used at normal reproduction distances, it's a perfect repro lens. Cheeers! Abbazz

05-22-2010, 08:42 AM	#12
Mechan1k Veteran Member Join Date: Jun 2007 Location: Sydney, Australia Posts: 2,891	I have yet to test my Macro-Takumar 50mm f/4 (which i understand is a 1:1) .... also have a set of M42 extension tubes as well ... which i might muck around with as well and see how close i can get.

05-22-2010, 09:18 AM	#13
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by Abbazz A 35mm macro lens like the DA35 is not really meant to take pictures of insects or other small critters because the lens to subject distance at 1:1 magnification is too short for most animals (2.3cm, that's a bit less than 1"). The D FA 100 would be more appropriate for this purpose, with its comfortable lens to subject distance of 12.9cm at 1:1. Macro lenses with short focal lengths like the DA35 are better suited for document reproduction and photography of small objects. It would require a huge studio to photography a painting with a 100mm lens, but it's possible to use a 35mm lens for that purpose in a normal sized room. As the DA35 has good field flatness, great resolution, low chromatic aberrations and almost no distortion when used at normal reproduction distances, it's a perfect repro lens. Cheeers! Abbazz Insect Macro images with the DA 35mm ltd. It is more hand holdable than tele macro lenses.

05-22-2010, 12:50 PM	#14
Ben_Edict Veteran Member Join Date: Jul 2007 Location: SouthWest "Regio" Photos: Albums Posts: 3,309	Originally posted by newarts I'm pretty sure the Pentax-A 50mm macro is only 1:2 magnification. Dave, that's true. The A 50 needs an extension tube to reach 1:1 - I just confirmed that on my copy. Ben

05-22-2010, 05:22 PM	#15
Mike Cash Veteran Member Join Date: Jan 2007 Location: Japan Photos: Gallery Posts: 6,950	Originally posted by raymeedc The original M42 Preset Takumar 50mm macro is 1:1 (the later Super & S-M-C M42 Takumars were only 1:2, for some reason). The reason is the change from a preset aperture design. When they included the aperture actuating bits-n-pieces it ate up quite a bit of space that the previous design had been able to use for extension.

1:1 macro lenses

Win a Pentax Limited Lens: Raffle Now Live!