Win a Pentax Limited Lens: Raffle Now Live!

rob1234 · 06-17-2012, 12:21 PM

Trying out the new M75-150/4. Great lens, but the aperture on my copy is stuck wide-open...

K5, M75-150, f/4

eddie1960 · 06-18-2012, 07:58 AM

Originally posted by Pepe Guitarra

I can see you are working on that promotion (or, is it demotion?)

LOL, nope he actually worked for me Part time at my Previous job in retail, when i left afer negotiatiing a package to get out he called me about halfway through the package to get me to come in and take over his position as he was moving to a property in Jamaica. I came in on contract but ended at a different property than the one he brought me in at (thankfully, the guy who ultimately got his position was downsized)

theunartist · 06-18-2012, 08:09 AM

Originally posted by rob1234

Trying out the new M75-150/4. Great lens, but the aperture on my copy is stuck wide-open...

K5, M75-150, f/4

If you can get the aperture corrected, I think it's worth it!

fearview · 06-19-2012, 02:35 AM

Sensia 100 + smc Pentax-M 1/4:20 + LX

**Canada_Rockies** · 06-19-2012, 09:00 AM

I can feel the storm coming! Nice!

Designosophy · 06-22-2012, 07:59 AM

Originally posted by el baroda

Hi. I am seriously thinking of getting an old Takumar 135mm f/2.5 lens but am not sure if it is a good move since I already own a modern Tamron 18-200mm lens. Can someone tell me if there is a noticeable difference in IQ between the two lenses if the latter is set at 135mm, assuming that available lighting is adequate? Should the former, being a prime lens, be better? Comments and suggestions will be much appreciated. Thanks and regards.

As others have said, it really depends on what you consider to be important about image quality. I owned the Takumar (Bayonet) 135 f/2.5. It's sharp - sharper than most zooms at that focal length, for sure, particularly at equivalent apertures. I have little doubt that it will be sharper than your 18-200 at 135mm. Plus, even with the K-5, high-ISO noise is an IQ killer. I love my Tamron SP 24-135, and it has great IQ wide open, but I would not use it indoors without a lot of sunlight or a flash. Even f/2.5 is slow for lamp-lit indoor lighting, but it's a heck of a lot better than f/5.6+. A 135 will give you really nice out of focus areas, as others have mentioned, particularly at large apertures.

Since the Takumar (Bayonet) is not multicoated (like the A 135 f/2.8 (which I've owned), or K 135 f/2.5, or some M42 Takumars), you will experience more loss of contrast and saturation in high-contrast situations. But its bargain price reflects this. Do you find yourself using your 18-200 a lot at 135mm? I think that's an important question when considering a prime. If you often use 50mm, and you don't have one, a 50mm f/1.4 or f/1.7 is a great starting point for fast primes. The M and A variants have great IQ and cost less than their AF equivalents. The M 50 f/1.4 was my first prime, and it really spoiled me with its fantastic IQ, speed, and bokeh.

el baroda · 06-23-2012, 03:31 AM

Originally posted by Designosophy

Since the Takumar (Bayonet) is not multicoated (like the A 135 f/2.8 (which I've owned), or K 135 f/2.5, or some M42 Takumars), you will experience more loss of contrast and saturation in high-contrast situations. But its bargain price reflects this. Do you find yourself using your 18-200 a lot at 135mm? I think that's an important question when considering a prime. If you often use 50mm, and you don't have one, a 50mm f/1.4 or f/1.7 is a great starting point for fast primes. The M and A variants have great IQ and cost less than their AF equivalents. The M 50 f/1.4 was my first prime, and it really spoiled me with its fantastic IQ, speed, and bokeh.

Hi. Thanks a lot for taking the time to answer my post. Based on comments received from our forum friends, I have decided not to go ahead with the Takumar lens. I have 3 variants of the Pentax 50mm (M 1.4, M 1.7 and A 1.7). I really enjoy shooting with them. As you said, their IQ, speed and bokeh are fantastic. Thanks again and best regards.

minahasa · 06-23-2012, 05:33 AM

M 100/2.8

rob1234 · 06-23-2012, 07:27 AM

Photos of Ms, rather than by one...

ducdao · 06-23-2012, 10:23 AM

Originally posted by rob1234

Photos of Ms, rather than by one...

If you had to pick only one, which one is your favorite?

I love the M20/f4, simply amazing lens.

rob1234 · 06-23-2012, 11:00 AM

Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital.

I have just got the M85/2 today, and it seems to be the same as the 50/1.7 really but longer - so probably this one! Need to try out 28 and 35 f/3.5 versions - apparently much sharper than my f/2.8 ones.

Despite the above - here's my landscape setup. Would usually use the LX for its MLU, but it is awaiting a CLA for the sticky mirror:

**mattt** · 06-23-2012, 08:59 PM

A quick shot out the drivers window.

K1000 + M 85/2 + expired Fujicolor 200 + Hoya ND8

fuent104 · 06-23-2012, 10:29 PM

Originally posted by rob1234

Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital.

I'd be happy to relieve you of the burden of owning the M20 f4.

LeGuillotine · 06-24-2012, 09:26 AM

Here is with M 40-80 + some extension:

And here with M 50 1.7 + extension:

ducdao · 06-24-2012, 08:05 PM

Originally posted by rob1234

Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital.

Maybe because I only use it on digital so the edges are great. The colours produced by the M20/4 are simply superb to my eyes.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
D-FA WR Club	Rico	Lens Clubs	672	1 Day Ago 07:37 PM
The A Club	jake.astig	Lens Clubs	4000	3 Days Ago 12:40 PM
The F Club!	jsherman999	Lens Clubs	1237	04-12-2024 04:04 PM
Ltd club, here I come	axl	Lens Clubs	21	12-12-2010 03:06 AM
In the club again	metroeloise	Post Your Photos!	4	10-20-2008 08:59 AM

06-17-2012, 12:21 PM	#3436
rob1234 Veteran Member Join Date: Apr 2010 Location: Wiltshire/Hampshire Photos: Albums Posts: 1,760	Trying out the new M75-150/4. Great lens, but the aperture on my copy is stuck wide-open... K5, M75-150, f/4

06-18-2012, 07:58 AM	#3437
eddie1960 Veteran Member Join Date: Aug 2010 Location: Toronto Photos: Gallery \| Albums Posts: 13,667	Originally posted by Pepe Guitarra I can see you are working on that promotion (or, is it demotion?) LOL, nope he actually worked for me Part time at my Previous job in retail, when i left afer negotiatiing a package to get out he called me about halfway through the package to get me to come in and take over his position as he was moving to a property in Jamaica. I came in on contract but ended at a different property than the one he brought me in at (thankfully, the guy who ultimately got his position was downsized)

06-18-2012, 08:09 AM	#3438
theunartist Inactive Account Join Date: Oct 2010 Location: Baltimore Posts: 2,542	Originally posted by rob1234 Trying out the new M75-150/4. Great lens, but the aperture on my copy is stuck wide-open... K5, M75-150, f/4 If you can get the aperture corrected, I think it's worth it!

06-19-2012, 02:35 AM	#3439
fearview Veteran Member Join Date: Apr 2008 Location: Jakarta Photos: Gallery Posts: 1,067	Sensia 100 + smc Pentax-M 1/4:20 + LX

06-19-2012, 09:00 AM	#3440
Canada_Rockies Loyal Site Supporter Join Date: Nov 2007 Location: Sparwood, BC, Canada Photos: Gallery \| Albums Posts: 12,385	I can feel the storm coming! Nice!

06-22-2012, 07:59 AM	#3441
Designosophy Veteran Member Join Date: Sep 2010 Location: Northeast Philadelphia Photos: Gallery \| Albums Posts: 1,137	Originally posted by el baroda Hi. I am seriously thinking of getting an old Takumar 135mm f/2.5 lens but am not sure if it is a good move since I already own a modern Tamron 18-200mm lens. Can someone tell me if there is a noticeable difference in IQ between the two lenses if the latter is set at 135mm, assuming that available lighting is adequate? Should the former, being a prime lens, be better? Comments and suggestions will be much appreciated. Thanks and regards. As others have said, it really depends on what you consider to be important about image quality. I owned the Takumar (Bayonet) 135 f/2.5. It's sharp - sharper than most zooms at that focal length, for sure, particularly at equivalent apertures. I have little doubt that it will be sharper than your 18-200 at 135mm. Plus, even with the K-5, high-ISO noise is an IQ killer. I love my Tamron SP 24-135, and it has great IQ wide open, but I would not use it indoors without a lot of sunlight or a flash. Even f/2.5 is slow for lamp-lit indoor lighting, but it's a heck of a lot better than f/5.6+. A 135 will give you really nice out of focus areas, as others have mentioned, particularly at large apertures. Since the Takumar (Bayonet) is not multicoated (like the A 135 f/2.8 (which I've owned), or K 135 f/2.5, or some M42 Takumars), you will experience more loss of contrast and saturation in high-contrast situations. But its bargain price reflects this. Do you find yourself using your 18-200 a lot at 135mm? I think that's an important question when considering a prime. If you often use 50mm, and you don't have one, a 50mm f/1.4 or f/1.7 is a great starting point for fast primes. The M and A variants have great IQ and cost less than their AF equivalents. The M 50 f/1.4 was my first prime, and it really spoiled me with its fantastic IQ, speed, and bokeh.

06-23-2012, 03:31 AM	#3442
el baroda Inactive Account Join Date: May 2010 Location: Sydney Photos: Albums Posts: 217	Originally posted by Designosophy Since the Takumar (Bayonet) is not multicoated (like the A 135 f/2.8 (which I've owned), or K 135 f/2.5, or some M42 Takumars), you will experience more loss of contrast and saturation in high-contrast situations. But its bargain price reflects this. Do you find yourself using your 18-200 a lot at 135mm? I think that's an important question when considering a prime. If you often use 50mm, and you don't have one, a 50mm f/1.4 or f/1.7 is a great starting point for fast primes. The M and A variants have great IQ and cost less than their AF equivalents. The M 50 f/1.4 was my first prime, and it really spoiled me with its fantastic IQ, speed, and bokeh. Hi. Thanks a lot for taking the time to answer my post. Based on comments received from our forum friends, I have decided not to go ahead with the Takumar lens. I have 3 variants of the Pentax 50mm (M 1.4, M 1.7 and A 1.7). I really enjoy shooting with them. As you said, their IQ, speed and bokeh are fantastic. Thanks again and best regards.

06-23-2012, 05:33 AM	#3443
minahasa Veteran Member Join Date: Jan 2011 Location: Minahasa, North Celebes (Sulawesi) Photos: Albums Posts: 586	M 100/2.8

06-23-2012, 07:27 AM	#3444
rob1234 Veteran Member Join Date: Apr 2010 Location: Wiltshire/Hampshire Photos: Albums Posts: 1,760	Photos of Ms, rather than by one...

06-23-2012, 10:23 AM	#3445
ducdao Pentaxian Join Date: Dec 2009 Location: Montreal/Vermont Posts: 2,160	Originally posted by rob1234 Photos of Ms, rather than by one... If you had to pick only one, which one is your favorite? I love the M20/f4, simply amazing lens.

06-23-2012, 11:00 AM	#3446
rob1234 Veteran Member Join Date: Apr 2010 Location: Wiltshire/Hampshire Photos: Albums Posts: 1,760	Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital. I have just got the M85/2 today, and it seems to be the same as the 50/1.7 really but longer - so probably this one! Need to try out 28 and 35 f/3.5 versions - apparently much sharper than my f/2.8 ones. Despite the above - here's my landscape setup. Would usually use the LX for its MLU, but it is awaiting a CLA for the sticky mirror:

06-23-2012, 08:59 PM	#3447
mattt Site Supporter Join Date: Feb 2011 Location: Niagara Photos: Gallery \| Albums Posts: 3,907	A quick shot out the drivers window. K1000 + M 85/2 + expired Fujicolor 200 + Hoya ND8

06-23-2012, 10:29 PM	#3448
fuent104 Veteran Member Join Date: Apr 2011 Location: California Photos: Gallery Posts: 1,356	Originally posted by rob1234 Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital. I'd be happy to relieve you of the burden of owning the M20 f4.

06-24-2012, 09:26 AM	#3449
LeGuillotine Senior Member Join Date: Jun 2009 Location: Finland, Kotka Photos: Gallery \| Albums Posts: 183	Here is with M 40-80 + some extension: And here with M 50 1.7 + extension:

06-24-2012, 08:05 PM	#3450
ducdao Pentaxian Join Date: Dec 2009 Location: Montreal/Vermont Posts: 2,160	Originally posted by rob1234 Much as I love the M20/4 (on film)... I find the edges don't quite stand up to close scrutiny if I'm being honest. Don't really use it for much on digital. Maybe because I only use it on digital so the edges are great. The colours produced by the M20/4 are simply superb to my eyes.

The M Club!

Win a Pentax Limited Lens: Raffle Now Live!