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Forum: Pentax SLR Lens Discussion 06-05-2016, 04:16 PM  
Tamron 17-70 vs Pentax 12-24
Posted By mlatour
Replies: 8
Views: 1,186
From what I remember of my DA 12-24mm f4, it performed much better at the wider end (12-16mm)
than in the 20-24mm range where it just wasn't as sharp.

The Tamron 17-50mm is a sharp lens, if you can find a good copy and, if the internals don't loosen up over time.
Forum: Pentax SLR Lens Discussion 12-15-2015, 11:04 PM  
When did your LBA abate ?
Posted By mlatour
Replies: 148
Views: 8,681
My LBA had been doing fine for the past few years until this summer when a few great opportunities popped-up,
figured now was a great chance to get a few compatible zooms in the event I ever got a Full-Frame Pentax DSLR:

Sigma 12-24mm f4.5-5.6 DG
Sigma 24-70mm f2.8 EX DG
Sigma 70-300mm f4-5.6 APO Macro

Luckily all at great prices versus some of my past LBA impulsive purchases...
Forum: Post Your Photos! 10-08-2015, 03:04 PM  
Sports A bit of Motocross - First Post
Posted By mlatour
Replies: 4
Views: 945
Motocross is another one of my hobbies, (even more than photography!)

Great pics, your are welcome to visit our track if ever you are in the Montreal area.
Forum: Sold Items 07-16-2015, 01:58 PM  
For Sale - Sold: Pentax K-5ii (with original box) + accessories - REDUCEDx4
Posted By mlatour
Replies: 14
Views: 4,145
PM sent...

Regards,

Michel
Forum: Pentax News and Rumors 04-27-2015, 07:10 AM  
**PENTAX CANADA** May 1st,2015- Price increase on ….
Posted By mlatour
Replies: 21
Views: 4,269
L.L. Lozeau in Montreal have the K3II (body only) listed at 1250$,
and the K-50 (body only) is on rebate at 380$ until Apr. 30th
Forum: Pentax SLR Lens Discussion 01-04-2015, 11:00 AM  
What lens is on your camera right now?
Posted By mlatour
Replies: 287
Views: 19,437
I have two K-x bodies,
the one stored in the car always has on a Tamron 18-200mm
the one here next to me has a SMC Pentax-F 28mm 2.8
Forum: Pentax DSLR Discussion 01-28-2014, 07:00 AM  
K5 low temp performance
Posted By mlatour
Replies: 11
Views: 1,135
My current K-x starts to act up at about -20°C,
the other night at -27°C I could only get 1-2 actuations
until it 'froze' and the rear LCD displayed a bunch of weird lines.
A quick on/off and it would always repeat the same behaviour.

An older K-x I sometimes use a spare (broken flash mount)
seems less affected by the extreme cold.
Lube on the mirror mechanism variations?
Forum: Welcomes and Introductions 02-23-2013, 06:55 AM  
just got a K-x, what now?
Posted By mlatour
Replies: 22
Views: 1,644
Despite being discontinued for a while now the K-x is still a great performer especialy at high ISO, (I've got two!)
but keep in mind it needs a good set of NiMH rechargeable AA batteries to function.

Brands like Eneloops, Ansmann, Powerex (if possible all of 2600 MaH. or better capacity)
often perform longer than easier to find common Wal-Mart Energizers/Duracells NiMh's.
Forum: Pentax K-5 02-22-2013, 08:25 PM  
Sigma 17-50mm EX f2.8 or Sigma 24-70mm EX f2.8
Posted By mlatour
Replies: 18
Views: 5,209
Both my Tamron 17-50mm were actually decent / very good when I first got them,
problems arose after a few days/weeks/months of using them almost everyday
in some moderate/rough environments.
Loose/worn internals?, ff-bf focus/sharpness became inconsistent thru the range etc.

My Sigma 18-50mm (see sig) is still going strong after 2.5 years in the same conditions.
Sent in for minor calibration once while I had one of the Tamron's as a back-up
and still shows no sign of wear after all this time in rough service.

In this case what did the extra $ get me:

much better pics = no
better build quality and performance consistency over time = yes

As mentionned, it's too bad because I think the optics of the Tamron lens
are very good, it's just the mechanical package surrounding it seems cheaply done.
Forum: Pentax K-5 02-14-2013, 06:45 PM  
Sigma 17-50mm EX f2.8 or Sigma 24-70mm EX f2.8
Posted By mlatour
Replies: 18
Views: 5,209
I had a Sigma 24-70mm f2.8 (pre-HSM version) for a while,

after getting used to having a 18-50mm as a walk-around lens,
I quickly realised that 24mm was just not wide enough for me.

I also tried a couple of Tamron 17-50mm f2.8 over the last few years,
front/back focus issues in both, zoom ring failure in one and overall
lower build quality/fit/handling than what I was used too.

Gave up on that model lens,
too bad because it seems like very good optics but not packaged properly,
it's too 'hit or miss' hoping to get a good copy I find.
Forum: Pentax SLR Lens Discussion 02-04-2013, 06:13 PM  
Are Any of The 17-50 (or in that range) Lenses Full Frame?
Posted By mlatour
Replies: 12
Views: 3,100
The old Sigma 20-40mm f2.8 EX DG zoom is also a full frame lens.

https://www.pentaxforums.com/userreviews/sigma-20-40mm-f2-8-ex-dg.html
Forum: Pentax SLR Lens Discussion 01-27-2013, 10:16 PM  
How to deactivate SDM and allow for screw drive autofocus with DA* 16-50mm f/2.8
Posted By mlatour
Replies: 844
Views: 238,351
English not being my first language, I also had a bit of difficulty getting the DEBUG_MODE going in my K-x from online instructions, perhaps this can help you too:

https://www.pentaxforums.com/forums/general-technical-troubleshooting/130514-...cs-please.html

Some online instructions mention that for the K-7 the DELETE button must be held while powering up and and not MENU.
On my K-x, the top AV+/- button has to be held.
Also, latest Firmware versions might not allow acces to the DEBUG_MODE in certain camera models.
Forum: Welcomes and Introductions 12-27-2012, 12:05 PM  
Hello from Dorval, QC, Canada
Posted By mlatour
Replies: 3
Views: 503
Welcome to the forums neighbour',
my profile says Montreal but I'm more precisely located in Dorval
(near the fire station)
Forum: Pentax SLR Lens Discussion 12-16-2012, 08:50 PM  
Tamron 17-50 F2.8
Posted By mlatour
Replies: 47
Views: 13,300
I've had that zoom ring problem too,
first the markings were not in line with the actual lens setting,
after a while the zoom ring became 'disconnected' from the internal mechanism and required warranty repair.

I finally got rid of this lens because of annoying front/back focus issues. Using the 'debug mode' trick
in my K-x I could tune only one end of the focal range, to be 'perfect' at 17mm it was than then front focus at 50mm.

Sold it and kept using my Sigma 18-50mm f2.8 EX DC Macro,
better build quality lens and just as sharp as the Tamron when stopped down to f3.5-4
Forum: Sold Items 10-23-2012, 03:46 PM  
For Sale - Sold: Sigma DC 18-50mm f/2.8 EX Macro
Posted By mlatour
Replies: 48
Views: 6,343
This is my everyday lens: sharp, consistent focus thru range, good build quality.

For a while had both a Tamron 17-50mm f2.8 and this one and
did plenty of side-by-side comparing.

Sold the Tamron, kept the Sigma. Great lens
Forum: Troubleshooting and Beginner Help 07-25-2012, 03:06 PM  
Can Sensor's move?
Posted By mlatour
Replies: 4
Views: 737
After a year or so in service my K-x developed an internal 'tilt'

as described in 1st post, despite holding the camera level thru viewfinder,
the recorded images were all 1°-2° degrees tilted to the right.

Warranty repair thru Pentax Canada, loose sensor or something.

Lately I think it's starting to do it again, not as severe maybe 0.5-1° degrees,
but after 2 years of hard use/being banged around I'm not going to spend to get it fixed out of warranty.
Forum: Pentax SLR Lens Discussion 07-13-2012, 07:51 PM  
I want a lens that flares REALLY bad
Posted By mlatour
Replies: 29
Views: 3,578
I've used both of these zooms:

-Sigma 24-70mm f2.8 EX DG MACRO (older version, non-HSM)

-Sigma 20-40mm f2.8 EX DG (harder to find)

both have a HUGE 82mm front element and are very prone to flare.
Forum: Welcomes and Introductions 06-05-2012, 02:56 PM  
Hi from Montréal
Posted By mlatour
Replies: 4
Views: 513
Salut Alain,
Bienvenue aux Pentax Forums!
Forum: Sold Items 05-11-2012, 08:09 AM  
Wanted - Acquired: Sigma 20-40mm f2.8 EX DG
Posted By mlatour
Replies: 3
Views: 769
Bump to top, still looking.
Now expanded shipping locations.
Forum: Sold Items 05-08-2012, 07:29 PM  
Wanted - Acquired: Sigma 20-40mm f2.8 EX DG
Posted By mlatour
Replies: 3
Views: 769
PM replied,
Forum: Sold Items 05-08-2012, 04:30 PM  
Wanted - Acquired: Sigma 20-40mm f2.8 EX DG
Posted By mlatour
Replies: 3
Views: 769
Looking for a Sigma 20-40mm f2.8 EX DG / Pentax mount, with hood & caps
in good general condition mechanicaly and opticaly (can have some cosmetic imperfections)

EDIT: If you have one for sale within Canada or the USA please contact me!

But idealy from a Canadian seller: Quebec, Eastern Ontario,
or bordering states: upstate Vermont / New-York
as I would prefer to do tests/transactions in person.
Forum: Pentax K-r 04-27-2012, 01:04 PM  
Do you still use your kit lens?
Posted By mlatour
Replies: 38
Views: 4,735
Never used it at all,

unfortunatly a body only option wasn't available when I got my K-x and I needed
a constant f2.8 zoom in the same range so I was stuck with an unused kit lens for a while.

Included the DAL 18-55mm as a 'free bonus' with lens sale/trade a year later.
Forum: Pentax DSLR Discussion 04-26-2012, 05:45 PM  
I've tried everything, and still can't bring up debug mode on KX
Posted By mlatour
Replies: 8
Views: 2,677
My K-x initialy required a big adjustment too, around +130.
But after a year or so in use, the recorded images started to be tilted 1-2 degrees
so I suspected a loose sensor mounting / SR mechanism / ?? problem.

Once back from warranty repair by Pentax Canada,
it required much less to fine tune the front/back focus,
around +30 or so.


Check if your horizon isn't level too,
set the camera on a level table, notice if playback image
isn't level with the one taken thru the viewfinder.
Forum: Pentax DSLR Discussion 04-24-2012, 03:45 PM  
I've tried everything, and still can't bring up debug mode on KX
Posted By mlatour
Replies: 8
Views: 2,677
I've asked for help on this subject before:
https://www.pentaxforums.com/forums/general-technical-troubleshooting/130514-...cs-please.html

I'm running Firmware version 1.01 in my K-x,
perhaps there's an issue with newer versions.
I've read somewhere that it might not work with v.1.03.

My memory card door is closed while I access the mode.
Forum: General Talk 04-14-2012, 07:43 AM  
Poll: Staying with Pentax or jumping ship?
Posted By mlatour
Replies: 324
Views: 24,540
improve:
-quality control
-autofocus accuracy in artificial light
-competitive pricing

K-01 / larger mirrorless camera with an EVF as a K-r replacement would be nice,
I don't care if a full-frame Pentax DSLR is ever offered.


Issue that also makes me reconsider next camera purchase:

-3rd party lens manufacturers not offering K-mount options:
Tokina 11-16mm, Tamron 17-50mm VC, 18-270mm etc.
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