Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-08-2011, 01:09 PM   #121
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
QuoteOriginally posted by RioRico Quote
And that's pretty awesome! The tilt adapter is on my get-it-eventually list. Gotta sell some stuff first. Or maybe I can build one.


No, you won't "get flammed here" but your artistic license may be revoked.

OK, so it's your turn to inflame our expensive LBA. Why are T*'s better than S-M-C Taks? Should I rob a minimart to raise the cash to buy some?
Why is it better?

1) Very fast at f1.4 for given FOV
2) Very sharp wide open and killer sharp when stop down. 3D effect
3) Micro contrast is top notch, probably due to T* coating

Don't just rob minimart, you need a bank

09-08-2011, 01:53 PM   #122
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by ducdao Quote
Don't just rob minimart, you need a bank
Then I must wait till I return to Guatemala, where the national sports are baseball and bank robbery.

But I digress. I realize the Z's are newer than the T's, newer coatings, etc. But still... I'm reminded of a couple purchases earlier this year. I got a Sears-Tomioka 55/1.4 for TWO BUCKS!! (Well, US$2.25 actually, shipped.) And then I got a K50/1.2 for US$250 shipped. Both were good deals. BUT... is the K50 actually 111x better than the Tomioka? Is it worth 111x as much? Similarly, is a T* 20x (or whatever) better than a Tak?
09-08-2011, 03:37 PM   #123
Pentaxian
hoanpham's Avatar

Join Date: Nov 2009
Location: Strand
Photos: Gallery | Albums
Posts: 1,360
Please let me know if you can build a tilt adapter. I used m42 lenses handheld to get the shot i need, not good, but the pentacon six lenses are about a kilo each.
09-08-2011, 04:31 PM   #124
Pentaxian
Sagitta's Avatar

Join Date: Feb 2011
Location: Maine
Photos: Gallery
Posts: 2,912
QuoteOriginally posted by hoanpham Quote
Please let me know if you can build a tilt adapter. I used m42 lenses handheld to get the shot i need, not good, but the pentacon six lenses are about a kilo each.
I have a Canon lens that I bought on a whim (had no listing on it for the type of mount itself) and managed to drop before getting the chance to try to resell the thing or use it as a paperweight. I pulled the canon mount off of it, stuck a Pentax mount on it, and wound up with kinda sorta a tilt effect since i didn't put the new mount on evenly. The lens didn't focus to infinity, but it did have a slight tilt effect going for close items. I imagine making a tilt lens would simply be a matter of replacing a mount cockeyed in just the right position.






09-08-2011, 08:52 PM   #125
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
QuoteOriginally posted by RioRico Quote
Then I must wait till I return to Guatemala, where the national sports are baseball and bank robbery.

But I digress. I realize the Z's are newer than the T's, newer coatings, etc. But still... I'm reminded of a couple purchases earlier this year. I got a Sears-Tomioka 55/1.4 for TWO BUCKS!! (Well, US$2.25 actually, shipped.) And then I got a K50/1.2 for US$250 shipped. Both were good deals. BUT... is the K50 actually 111x better than the Tomioka? Is it worth 111x as much? Similarly, is a T* 20x (or whatever) better than a Tak?
I don't think you can compare that way. The correlation between price and improvement is not linear, it's more like exponential...

It's like buying a car, both Ford Focus and Ferrari can take your from point A to point B but is the Ferrari 20x better as it's that much more expensive? I don't think so. For any slight improvement there is a big premium to pay, it's really up to the buyer and the market to decide whether it's worth or not.
09-09-2011, 01:59 AM   #126
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by hoanpham Quote
Please let me know if you can build a tilt adapter. I used m42 lenses handheld to get the shot i need, not good, but the pentacon six lenses are about a kilo each.
For a tilt adapter, I'm thinking of a Lensbaby3(?)-type structure:

* A flexible rubber plumbing tube with male+female mount pieces, like from an ultra-cheap set of PK macro tubes
-- (for Pentacon 6 lenses, use a P6 female mount instead of PK);
* Square metal frames soldered or screwed onto the mounts, with small holes drilled into the frame corners;
* Long screws running through those holes between the front and rear mounts, with wingnuts on the screw ends.

Mount the lens on this adapter, and the adapter on the camera. Tighten selected wingnuts to provide the desired tilt. A little clumsy, but dirt cheap, and with total fixed control over the tilting. At least, that's the fantasy.

QuoteOriginally posted by ducdao Quote
The correlation between price and improvement is not linear, it's more like exponential...
I know this. I just like to see justifications.

My common justification|rationalization is that while various lenses can produce interestingly different results, 'better' lenses can just do stuff that others can't. So the K50/1.2 and Tomioka 55/1.4 aren't just different; the K50 has greater abilities (and splendid rendering). But it's still hard to think of it as 111x or even 10x 'better'. Yeah, a 5% improvement may cost a 95% premium. Ratz.
09-09-2011, 03:18 AM   #127
Veteran Member




Join Date: Oct 2010
Location: capital city, the land of eh (Ottawa, Canada)
Photos: Gallery | Albums
Posts: 323
Damn you ... I did not have to hear that (my way of saying thanks).

My way of keeping my perpetual LBA under control (LENS PORN WARNING):

vw michael can | eBay

QuoteOriginally posted by Clavius Quote
Wow, I'm predicting a lot of lenspr0n here!

I had LBA... Or maybe it's still there waiting to raise it's head again. Only my most used lenses are in my signature. Besides my small collection of AF lenses (all in my signature) I've got and additional 18 russian lenses. For some reason, when a lens has "CCCP" or "DDR" on it, I suddenly NEED it. I like the look and feel of the Soviet equipment from that era.

Also, whenever I discover a new kind of adapter. A whole new world of lenses opens up to me, and LBA is back again. Recently I found out that I can place microscope lenses on my K5 with a m42 to RMS adapter. The lenses are tiny and not very expensive, so the LBA only gets worse! Like a drunk, discovering very cheap liquor...

Actually, I got into Pentax, because I was told that it could mount a huge amount of old lenses. But generally, it can only mount PK and M42/M39. Later, I found out that Canon could mount much more.
09-09-2011, 08:55 AM   #128
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Clavius Quote
Recently I found out that I can place microscope lenses on my K5 with a m42 to RMS adapter. The lenses are tiny and not very expensive, so the LBA only gets worse!
OK, I'll bite. I found M42-RMS adapters on eBay for under US$20 but a search for RMS LENS fails. Where do I find cheap RMS lenses? And what are their focus limitations? Closeup only? Vignetting? What do you shoot with them?

QuoteQuote:
Actually, I got into Pentax, because I was told that it could mount a huge amount of old lenses. But generally, it can only mount PK and M42/M39. Later, I found out that Canon could mount much more.
Yes, Canon is more receptive -- m4/3 and NEX are MUCH more receptive. But with some slight mods, PK mount can receive Nikon, Exakta, OM, C/Y, and some Argus lenses. (I use all of these.) For maximum LBA, my next cam may be a NEX.

09-10-2011, 01:13 PM   #129
Veteran Member




Join Date: Oct 2010
Location: capital city, the land of eh (Ottawa, Canada)
Photos: Gallery | Albums
Posts: 323
QuoteOriginally posted by ducdao Quote
Well, compared to all previous posters I seem to have the most serious level of LBA adding to CBA (Camera Buying Addiction) and FBA (Flash Buying Addiction).

In short, I have a buying addiction, period.

LBA: 450+ lenses. I ceased counting them a while ago
CBA: 6 DSLR's on top of 40+ MF bodies
FBA: 20 old flashes (mainly old Vivitar and Nikon SB)

My ultimate goal is to sell and scale down my lenses collection to 250 by mid-2012.
You shall be known as the "L/C/F-BA Guru" from now onwards ...

Where the heck do you keep all that? A self-run museum?
09-10-2011, 07:58 PM   #130
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
QuoteOriginally posted by vw_michael Quote
You shall be known as the "L/C/F-BA Guru" from now onwards ...



Where the heck do you keep all that? A self-run museum?
My friends call me nuts or someone with spending disorder

I store my most expensive ones in an electrical dry box, the remaining are in transparent plastic boxes with a wireless dehumidificator and hydrometer in each box. I try to use at least one new lens per week.
09-10-2011, 09:11 PM   #131
Veteran Member




Join Date: Oct 2010
Location: Taiwan
Photos: Gallery | Albums
Posts: 1,073
My LBA is finished for about a year. I might add a onsey or a twosey like a Helios or something but it's time to save for CBA (K-5 next summerish). It's been an impressive run of LBA recently.

DA15 as a birthday gift - I feel too old for birthday gifts but if I don't pick something expensive I get checks in the mail. Do not want checks.
DA40 - a moment of weakness giving me an AF normal for street/portrait/landscape
K35/3.5 - found it relatively cheap before buying the DA40
M50/4Mac - I'm not sure I compose on a macro scale well but it was cheapish
supertak 105/2.8 - kind of excited about this one
SMC tak 55/1.8 - an alternative fast 50 - really cheap

others
M50/1.7 with a decent set of ext tubes - already have the A50/1.7 - not happy with this purchase but it wasn't expensive
promaster 70-210 zoom or something like this - came with the K35/3.5
M50/2 - real cheap but then I bought 2 more cheap and better 50's however I need more rear/front caps anyway
2 camera bodies
viv 2x teleconverter was included with something.
09-11-2011, 03:35 AM   #132
Moderator PEG Judges
Kerrowdown's Avatar

Join Date: Aug 2008
Location: Highlands of Scotland.
Photos: Gallery
Posts: 30,647
QuoteOriginally posted by Lowell Goudge Quote
If there is a purpose, and it is a good purpose, based upon photographic needs
This sums me up quite nicely.

I've been lucky that my lenses (as per sig) have served me well over the time and I haven't had the need to purchase for quite a while now.

At my age now, a better pair of eyes would be good though, is there an EBA (eye buying addiction) club I could join.

Last edited by Kerrowdown; 09-11-2011 at 07:45 AM.
09-11-2011, 06:36 AM   #133
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by kerrowdown Quote
At my age now, a better pair of eyes would be good though, is their an EBA (eye buying addiction) club I could join.
My most-used lenses are Zeiss Hitecs -- they're in the frame in front of my eyes.
Rebuilding my delaminating eyeballs would be nice, but the nanobots ain't here yet.
09-12-2011, 07:10 PM   #134
Veteran Member




Join Date: Oct 2010
Location: capital city, the land of eh (Ottawa, Canada)
Photos: Gallery | Albums
Posts: 323
QuoteOriginally posted by ducdao Quote
My friends call me nuts or someone with spending disorder

I store my most expensive ones in an electrical dry box, the remaining are in transparent plastic boxes with a wireless dehumidificator and hydrometer in each box. I try to use at least one new lens per week.
That's pretty awesome. You and RioRico are my LBA heros ... haha.

BTW. So with 400 lenses, the complete weekly rotation takes 7.5 years!
09-12-2011, 08:09 PM   #135
Pentaxian
ducdao's Avatar

Join Date: Dec 2009
Location: Montreal/Vermont
Posts: 2,160
QuoteOriginally posted by vw_michael Quote
That's pretty awesome. You and RioRico are my LBA heros ... haha.

BTW. So with 400 lenses, the complete weekly rotation takes 7.5 years!
For me, my wife is my hero for letting me have all those lenses
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
club, k-mount, lba, macro, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
D-FA WR Club Rico Lens Clubs 560 1 Day Ago 06:32 AM
DA* Club MCR Lens Clubs 4569 2 Days Ago 05:32 PM
Please help… I have “LBA-P”… LBA Paranoia!!!!! pHREDD D Pentax SLR Lens Discussion 14 03-13-2010 07:29 AM
Killed (or at least slowed down) LBA with a club tvfd911 Pentax SLR Lens Discussion 14 05-21-2009 11:09 AM
K110D Colorado (USA) LBA club candidate (;-) TreeHuggerDoug Welcomes and Introductions 1 06-07-2007 01:29 AM



All times are GMT -7. The time now is 03:43 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top