Win a Pentax Limited Lens: Raffle Now Live!

Javaslinger · 03-29-2010, 06:45 AM

I just picked up a screw mount Super Takumar 1:1.4/50 off ebay for $33.

Looks ok from the images...

I was looking for a fast lens for use indoors and to do some DOF stuff....

Is this a good lens? I can't really tell much else about the lens. Might be a serial or something on it.

Thanks,

Ken

Ira · 03-29-2010, 06:57 AM

Originally posted by Javaslinger

I just picked up a screw mount Super Takumar 1:1.4/50 off ebay for $33.

Looks ok from the images...

I was looking for a fast lens for use indoors and to do some DOF stuff....

Is this a good lens? I can't really tell much else about the lens. Might be a serial or something on it.

Thanks,

Ken

Excellent lens, and you did GREAT on the price, if condition is okay.

Well done!!!

Be aware that these lenses have yellowed over the years because of radioactivity (true), but it's no big deal because not only can the yellowing be lessened/removed, but some people like the warm cast it imparts to the images.

Mine isn't very yellowed, so I never did the fix to remove it.

Ira · 03-29-2010, 07:00 AM

The SMC version is rated better than the the Super Taks by most folks, but that takes nothing away from the quality of YOUR lens,

JeffJS · 03-29-2010, 07:01 AM

What IS the fix?? I have an Olympus 55mm f1:1.2 built the same way that has some yellowing..

Ira · 03-29-2010, 07:10 AM

You loosely wrap the front end (where the light enters) with aluminum foil, and place it on a windowsill with the camera end facing the sun. You do it about for about a week, depending on your sun exposure.

You can also put it in a small box lined with foil, and shine a small UV tanning bulb on it.

**Just1MoreDave** · 03-29-2010, 08:37 AM

I had my Super-Multi-Coated 50mm f1.4 apart already, and I noticed that the front lens group was clear. The rearmost element was also clear. The yellowing seemed to be limited to the remaining elements, between the aperture blades and the rearmost element. I left those elements on a windowsill for a few months, and they aren't yellowed anymore. But the reassembled lens still has a warmer cast than an A50/1.4 or an F50/1.7.

Ira · 03-29-2010, 09:28 AM

Originally posted by Just1MoreDave

I had my Super-Multi-Coated 50mm f1.4 apart already, and I noticed that the front lens group was clear. The rearmost element was also clear. The yellowing seemed to be limited to the remaining elements, between the aperture blades and the rearmost element. I left those elements on a windowsill for a few months, and they aren't yellowed anymore. But the reassembled lens still has a warmer cast than an A50/1.4 or an F50/1.7.

From what I've read, the lamp is the way to go.

The other thing is, the way you explained it, it doesn't seem like you're allowing the light to pass through the element unobstructed, unless you stood them up somehow.

Erik · 03-29-2010, 09:43 AM

Originally posted by Ira

From what I've read, the lamp is the way to go.

Yeah -- because correct me if I'm wrong, but since window glass already filters most light in the UV spectrum putting it on the windowsill will be extremely S-L-O-W...

Bart · 03-29-2010, 11:03 AM

On the outside!

03-29-2010, 06:45 AM	#1
Javaslinger Senior Member Join Date: Jan 2009 Location: Blacksburg, VA Photos: Albums Posts: 286	Bought my first budget 'fast' lens... how'd I do? I just picked up a screw mount Super Takumar 1:1.4/50 off ebay for $33. Looks ok from the images... I was looking for a fast lens for use indoors and to do some DOF stuff.... Is this a good lens? I can't really tell much else about the lens. Might be a serial or something on it. Thanks, Ken

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
What's a FAST (used to be fast) film lens	neverbnnba	Pentax SLR Lens Discussion	11	07-03-2010 05:42 PM
Best budget macro lens?	raver1414	Pentax SLR Lens Discussion	15	12-10-2009 12:50 PM
Fast, Normal Primes on a Semi-Budget	Biro	Pentax SLR Lens Discussion	16	10-31-2009 08:26 AM
Best budget tripod for a K20D kit lens and a Tamron 70-300mm lens.	shaolin95	Pentax Camera and Field Accessories	13	08-29-2009 11:53 AM
Your thoughts on this budget lens?	vmax84	Pentax DSLR Discussion	22	12-16-2008 07:38 AM

03-29-2010, 06:57 AM	#2
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	Originally posted by Javaslinger I just picked up a screw mount Super Takumar 1:1.4/50 off ebay for $33. Looks ok from the images... I was looking for a fast lens for use indoors and to do some DOF stuff.... Is this a good lens? I can't really tell much else about the lens. Might be a serial or something on it. Thanks, Ken Excellent lens, and you did GREAT on the price, if condition is okay. Well done!!! Be aware that these lenses have yellowed over the years because of radioactivity (true), but it's no big deal because not only can the yellowing be lessened/removed, but some people like the warm cast it imparts to the images. Mine isn't very yellowed, so I never did the fix to remove it.

03-29-2010, 07:00 AM	#3
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	The SMC version is rated better than the the Super Taks by most folks, but that takes nothing away from the quality of YOUR lens,

03-29-2010, 07:01 AM	#4
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	What IS the fix?? I have an Olympus 55mm f1:1.2 built the same way that has some yellowing..

03-29-2010, 07:10 AM	#5
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	You loosely wrap the front end (where the light enters) with aluminum foil, and place it on a windowsill with the camera end facing the sun. You do it about for about a week, depending on your sun exposure. You can also put it in a small box lined with foil, and shine a small UV tanning bulb on it.

03-29-2010, 08:37 AM	#6
Just1MoreDave Site Supporter Join Date: Feb 2007 Location: Aurora, CO Photos: Gallery \| Albums Posts: 6,340	I had my Super-Multi-Coated 50mm f1.4 apart already, and I noticed that the front lens group was clear. The rearmost element was also clear. The yellowing seemed to be limited to the remaining elements, between the aperture blades and the rearmost element. I left those elements on a windowsill for a few months, and they aren't yellowed anymore. But the reassembled lens still has a warmer cast than an A50/1.4 or an F50/1.7.

03-29-2010, 09:28 AM	#7
Ira Inactive Account Join Date: Mar 2009 Location: Coral Springs, FL Photos: Gallery \| Albums Posts: 5,216	Originally posted by Just1MoreDave I had my Super-Multi-Coated 50mm f1.4 apart already, and I noticed that the front lens group was clear. The rearmost element was also clear. The yellowing seemed to be limited to the remaining elements, between the aperture blades and the rearmost element. I left those elements on a windowsill for a few months, and they aren't yellowed anymore. But the reassembled lens still has a warmer cast than an A50/1.4 or an F50/1.7. From what I've read, the lamp is the way to go. The other thing is, the way you explained it, it doesn't seem like you're allowing the light to pass through the element unobstructed, unless you stood them up somehow.

03-29-2010, 09:43 AM	#8
Erik Veteran Member Join Date: Nov 2008 Location: Umeå, Sweden Posts: 755	Originally posted by Ira From what I've read, the lamp is the way to go. Yeah -- because correct me if I'm wrong, but since window glass already filters most light in the UV spectrum putting it on the windowsill will be extremely S-L-O-W...

03-29-2010, 11:03 AM	#9
Bart Pentaxian Join Date: May 2007 Location: WW community of Pentax users Photos: Gallery \| Albums Posts: 2,646	On the outside!

Bought my first budget 'fast' lens... how'd I do?

Win a Pentax Limited Lens: Raffle Now Live!