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Forum: Pentax SLR Lens Discussion 10-03-2017, 07:28 AM  
Trade 18-135 for 16-50?
Posted By Clavius
Replies: 20
Views: 1,013
I've got a lot of very nice primes. But I'm very careful with them. I just want one WR zoom that's going to take all the punishment of rain, dust, snow, etc...


That's interesting, what aspect exactly makes you prefer these images? This is what I'm afraid of, selling my excellent copy of the 18-135 for something that's going to make me miss it.
Forum: Pentax SLR Lens Discussion 10-03-2017, 07:08 AM  
Trade 18-135 for 16-50?
Posted By Clavius
Replies: 20
Views: 1,013
No, this is actually very helpful. I had wrongfully dismissed the 16-85 from the start because of the slower and variable aperture. But now judging from user reviews its performance seems to be excellent.

I need to do some more homework...
Forum: Pentax SLR Lens Discussion 10-03-2017, 03:00 AM  
Trade 18-135 for 16-50?
Posted By Clavius
Replies: 20
Views: 1,013
Thanks. Yes, in the ideal world I'd have both lenses as well... But in the real world I promised my wife that I wouldn't expand my lens collection any further.

Which one has the better IQ? (In the wide to normal range, of course.)
Forum: Pentax SLR Lens Discussion 10-03-2017, 02:32 AM  
Trade 18-135 for 16-50?
Posted By Clavius
Replies: 20
Views: 1,013
Does anybody own, or has owned, both the DA 18-135 and the DA* SDM 16-50?

I have the 18-135 for quite some time now, and I think my copy is really good. IQ does fall of in the long end quite quickly though. But from 18 to about 80is it's really good. And I don't really care much about the tele end. Most of my shooting is wide to normal.

Now an opportunity has arisen. I can trade in my 18-135, together with some added cash, for a fairly new DA* SDM 16-50. First I was very excited about the possible upgrade, but when I see the reviews of the 16-50 on this forum, I get very discouraged.

Can anybody who has experience with both shed some light please?
Forum: Pentax SLR Lens Discussion 06-16-2017, 01:56 PM  
Squeeky SDM
Posted By Clavius
Replies: 10
Views: 561
DXO's scores seem to agree entirely with Photozone's:

Pentax smc DA Star 55mm F1.4 SDM mounted on Pentax K-3 : Tests and Reviews

Pentax smc FA 50mm F1.4 mounted on Pentax K-3 : Tests and Reviews

I realize fully that I'm letting steering way to much on numbers instead of actual performance. It just doesn't feel much like an upgrade. Going to look for another sweet deal.
Forum: Pentax SLR Lens Discussion 06-16-2017, 03:14 AM  
Squeeky SDM
Posted By Clavius
Replies: 10
Views: 561
Thanks for your reply, I thought as much.

I've also come to the conclusion that my assumption that the DA*55 1.4 would be an improvement over my FA 50 1.4 is false. According to Photozone it has worse IQ then the FA 50. That was not what I expected. Moreover the DA* 55 autofocus takes a full second longer to lock.

So, I'm just going to leave this offer alone.
Forum: Pentax SLR Lens Discussion 06-16-2017, 01:47 AM  
Squeeky SDM
Posted By Clavius
Replies: 10
Views: 561
I can get a really sweet deal on a DA* 55 1.4 SDM. The deal is so sweet because the current owner notes that the SDM makes a high pitch sound during auto focusing. Maybe "squeeking" is the wrong word to describe it. It's more like a chirp/whistle. I'm a sucker for deals like this. Maybe you guys can talk some sense into me. Or preferably, confirm that this will ok.

Is this one of the clear signs that the SDM is going some time soon? Or could it still go on for years?
Forum: General Photography 07-12-2016, 01:27 AM  
Did anybody ever find their 'perfect' camerabag?
Posted By Clavius
Replies: 80
Views: 4,015
Hmmm... I'm now thinking about the Lowepro Messenger 180 AW:



It's not an obvious camerabag, carries a large amount of kit and certainly looks good. It's just much bigger then I planned. The 160 AW is supposed to be smaller, but I can't find it in the stores anywhere.

This weekend on a typical family trip, I take my K5IIs, HD DA 35mm ltd and SMC DA 15 ltd. So the bag can really be smaller, but there are no unconspicuous bags of a smaller size. The smaller ones always end up being holster style camerabags.
Forum: General Photography 07-10-2016, 06:28 AM  
Did anybody ever find their 'perfect' camerabag?
Posted By Clavius
Replies: 80
Views: 4,015
It may be a cultural thing, but that looks very feminine. With the current influx over here in Europe a bag like this might result in worse events then bag that screams camera. [emoji1]

I'm going with the small kata.
Forum: General Photography 07-08-2016, 06:16 AM  
Did anybody ever find their 'perfect' camerabag?
Posted By Clavius
Replies: 80
Views: 4,015
Wow, a lot of good suggestions.

I realize there's a lot of personal taste involved. And that the suitable bag is depending on the situation.


This is the sort of bag I'm looking for! But a bit smaller. I just saw the little brother, the Kata DL-DC-439. I holds just enough for the camera with a lens, and an extra lens. Maybe two extra lenses when carrying limiteds.
Forum: General Photography 07-08-2016, 03:49 AM  
Did anybody ever find their 'perfect' camerabag?
Posted By Clavius
Replies: 80
Views: 4,015
Buying camera bodies and lenses, and being happy with those as well, is easy. That doesn't seem to workout with camera bags though, at least for me. I've tried about 9 in all shapes and sizes. But they're always either to big, to small, in the way, strangling me, etc...

I know I need something small, my camera with a lens, and an additional lens (maybe two) is all I ever take with me. And I prefer the messenger style bag over any other type. And sadly, a bag that doesn't scream EXPENSIVE CAMERA EQUIPMENT is a must in my part of the world.

So who has found a bag that fits in this category and is very happy with it? I really like to see your suggestions.
Forum: Pentax SLR Lens Discussion 06-24-2016, 09:10 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Wow, you're right! Thanks. So, I'll end up replacing my old smc with a HD version after all.
Forum: Pentax SLR Lens Discussion 06-23-2016, 11:40 PM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
It's discontinued and way to long for my taste.
Forum: Pentax SLR Lens Discussion 06-23-2016, 11:15 PM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Wait wait... My Japanese is non existent, but those are K-1 shots with the 35mm macro ltd in crop mode right? Otherwise my dilemma would be instantly solved.
Forum: Pentax SLR Lens Discussion 06-23-2016, 01:25 PM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Ah yes, sorry for the lack of updates. The repair center here gave me a ridiculous quote for cleaning the lens. And I'm not brave enough to do it myself. So therefore I've sold it, openly and honestly, to somebody who's a lot braver then me. He said he would try to remove the haze.

...Now I still don't know what to replace the 35mm with. I loved its versatility. Right now I'm leaning towards that Sigma 30mm 1.4 art. (Like I said, macro was just a nice-to-have, that added to its versatility.)

Or I might replace it with the HD version of the 35mm macro ltd. But that won't work on te K-1 when I upgrade.

The DFA 100mm is off the list. I realized last week dat I already feel cornered very quickly with a 50. So this lens would probably only be used for macros in my hands. Which I find a waste.
Forum: Pentax SLR Lens Discussion 06-20-2016, 11:50 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Yes, I'm the original owner. None of my other lenses seem to be suffering from it. And they are stored in the same place in my studio. (I've been feverishly checking them in the past half hour.) My studio does get very hot in the summer though. So I'm going to stored them in a cooler place of my home.
Forum: Pentax SLR Lens Discussion 06-20-2016, 11:23 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
That's ok, you never know. Sadly though, it's definitely not external.

Any ideas what I did wrong in using/storing this lens? I always keep it in the camera bag together with two moist absorption things.
Forum: Pentax SLR Lens Discussion 06-20-2016, 10:53 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Nope... Actually, I don't know what the flashlight test is.

Edit: Just googled and did the test. Upon first inspection it looked fine. But then when I did the same to a lens that doesn't produce the haze I saw the difference. With the flashlight test the DA 35 produces the same blueish / greyish cast inside the lens.
Forum: Pentax SLR Lens Discussion 06-20-2016, 10:43 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
Hi Guys,

As promised, here's a sample of what my copy of the 35 ltd macro produces with a comparison: (fyi, it's my old broken K5, which I haven't been able to throw away yet...)

Pentax SMC DA 35mm macro ltd:
Attachment 314824

Pentax SMC DA 18-135:
Attachment 314823

Both lenses mounted on the same body. (K5IIs) Both used with hood, both at F5.6, same lighting, etc...



Many thanks for doing that for me. Looking at your pictures, I'm beginning to think there's something seriously wrong with my copy. I've started browsing through my pictures, and 5 years ago, the pictures from my copy were as crisp and clean as yours. So somehow, through the years, it has degraded somehow.



I'm going to have to disagree with you. Or at least say that lack of sharpness is an issue.
Forum: Pentax SLR Lens Discussion 06-20-2016, 05:48 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
I do love the versatility of the 35 macro though!

Another reason for wanting a 'sharper' lens is the fact that I don't find (my copy of) the 35mm all that sharp. I don't know how to describe it. But the problem is most prominent when I'm using it in my studio. The more flashes, the more obvious the problem becomes. You know how some lenses have this blue hotspot in the center? Well it's like my DA 35 has the blue hotspot all across the frame. I'll post two pictures tonight when I get home for comparison, one with the 35 and one with another lens that's set to 35mm.

So, maybe I'm better off replacing my SMC DA 35 ltd by a HD DA 35 ltd for its superior coatings?
Forum: Pentax SLR Lens Discussion 06-20-2016, 05:01 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
That's good news. If I had my way, I'd just add the 100mm to my arsenal and keep both. But prior experiences with heavy LBA has forced me to keep myself to a maximum number of lenses. So, now I need to sell one to buy one. Therefore, it needs to be an upgrade. FF-capability sure is a big plus for the 100mm.

But if anyone has a good source for Pentax MTF data, please let me know.
Forum: Pentax SLR Lens Discussion 06-20-2016, 04:52 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
I know the 100mm will be much better at not-scaring little critters. This is an added benefit for me. But I'd much rather risk (maybe) scaring off a critter, then trading in a lens with excellent sharpness for one with a tad bit less sharpness.

But macro-capability and shooting critters isn't even all that important. I just want an ultra-sharp lens; a feature that's often found in macro lenses.
Forum: Pentax SLR Lens Discussion 06-20-2016, 04:36 AM  
Pentax lens MTF
Posted By Clavius
Replies: 34
Views: 2,327
I've been searching high and low for good recent Pentax MTF charts, but It's near impossible to find these. Does anybody have a good source? I've already tried Photozone.de, but the MTF data and reviews are ancient.

To be more specific: I'm trying to decide if I should sell of my Pentax SMC DA 35mm macro ltd limited to replace it with the Pentax SMC D-FA 100 macro. Sharpness is the most important factor here. But if I read the MTF charts on photozone correctly, this move would actually be a resolution-downgrade. Dang! This doesn't comply withe more subjective reviews of both lenses here on PF, which seem to favor the 100mm.

Pentax SMC DFA 100 macro: Pentax SMC-D FA 100mm f/2.8 macro - Review / Test Report - Analysis

Pentax SMC DA 35 macro ltd: Pentax SMC DA 35mm f/2.8 Limited macro - Review / Test Report - Analysis

So if anybody can shed some light on this, that would be a great help!
Forum: Pentax Full Frame 03-10-2016, 07:22 AM  
K-1 So What Is Full Frame Going To Provide Over A Crop Frame DSLR
Posted By Clavius
Replies: 312
Views: 18,216
Aside from all the mentioned benefits, my small studio will become "larger" in comparison to when using an APSC camera. And thus, it will become more usable.
Forum: General Photography 02-25-2016, 04:25 AM  
Challenging assingment
Posted By Clavius
Replies: 11
Views: 738
The tracing paper idea is both simple and genius! Exactly what I was looking for.



Won't be a problem. I'm overgeared in all areas. And I have my own (but small) studio. I can easily dedicate a corner entirely to this project.




Many thanks!!
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