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Forum: Pentax DSLR Discussion 12-16-2008, 11:15 AM  
Auto Focus: Canon vs. Pentax
Posted By smcclelland
Replies: 32
Views: 7,038
You won't find too much of a difference in the 350/400D/450D models and if there is it will be minor. The sweet spot with Canon AF is using USM Canon lenses or HSM Sigma lenses which greatly improves the focus accuracy/consistency comapred to non-USM motorized lenses. If you're a center point shooter it will all be the same really but if you're like me where you use the outter AF regions then you'll really notice a big jump going to the 30D/40D/50D models as they are 9-point AF cross-type sensors with the ultra-sensitive center point using an f2.8 lens or faster.

I've not used a Pentax K20D so I cannot vouch there and will leave that for the more experienced Pentax shooters but in the Canon camp you have to "pay to play" for AF performance. My 40D tends to hunt in extremely low light even with my 50 1.2 but my 1DMk3 locks on in an instant and holds focus nicely.
Forum: Pentax DSLR Discussion 12-16-2008, 08:08 AM  
An interesting debate I started
Posted By smcclelland
Replies: 51
Views: 6,614
Of course Skip locked it because the thread was going nowhere and you seemingly had your mind made up to drop your Canon system and go Pentax. Do yourself a favour and stop trying to put others in bad light because they don't agree with your opinion.

As to the others, I knew there was a reason why I missed the Pentax forums and it's primarily because of the maturity and respect people here have. I full-well expected to walk into a fire here and get burned alive but it's good seeing old faces and many new ones who are enjoying the Pentax system.

Maxington: Lens availability is quite persuasive in many regards, the draw to Canon for me was it gave me the opportunity to have the fast primes I wanted for pit/paddock work with some weddings and the long telephotos I needed for my motorsports/track work. I looked many times at switching to Nikon before I got a Mk3 and the thing that kept me tethered to Canon was they didn't have an 85 1.2, a 50 1.2, 35 1.4 or 24 1.4 which are all key lenses for low light work for me. I agree the double-ups are frustrating but it gives users so many options in that if you cannot afford an f2.8 version you can score the f4 version for a fraction of the cost and deal with the 1-stop loss of light. Paying for the weather sealing does hurt a bit and I know coming from Pentax that was a bit of a shock factor for me but it's a price I am more than willing to pay when I am standing out in -35 weather shooting snowmobiles or in torrential downpour shooting a race because I know I am covered (remember, only a handful of Canon's lenses are actually fully weather sealed as well and they are typically the IS version L lenses with a few others in there).

My opinion still stands as to each their own, we all have different needs that suit us and different budgets which will determine the gear route we take. I've got nothing against anyone who is a Pentax, Sony, Nikon, Leica, Minolta, Hassy or whatever brand shooter but I'd rather not see people pass off uneducated opinions to others just to stir the pot and get a little spark going.
Forum: Pentax DSLR Discussion 12-15-2008, 07:19 PM  
An interesting debate I started
Posted By smcclelland
Replies: 51
Views: 6,614
Please list me all AUTO FOCUS pentax lenses available as of right now that I can walk into B&H and buy right off the shelf. I'll happily post my extremely long list of EF and EF-S lenses I can readily purchase without having to resort to ebay/KEH hunting.

Fact is that Canon probably has the largest set of available AF lenses for DSLR's. Argue all you want about oldschool mounts and MF lenses but lets face it in that most of these lenses are obsolete given the current offerings that other systems have. I'm not knocking MF here by any means, but your debate is flawed and your point with these older MF lenses is repeatedly beating a dead horse.

If you want to be a fan-boy, that's fine and by all means go right ahead but please don't try and put users of another system in bad light or make false claims about us just because we put facts before our own personal favourites. I'm not sure if you're a hobbyist or a paid photographer but I know the big reason for my change was that photography is a source of my income and I absolutely must have tools that meet my demands day in and day out and I also need availability to walk into a store in a pinch and get a lens right then and there both of which I didn't feel Pentax offered me for my motorsports needs.
Forum: Pentax DSLR Discussion 12-15-2008, 05:11 PM  
An interesting debate I started
Posted By smcclelland
Replies: 51
Views: 6,614
Boy, didn't think I would remember my pentax forums login there for a moment. Good seeing old faces like GaryM still around with a neutral point of view on the matter.

sflights, are you just trying to stir the pot on both forums or is there some actual point to your side of the debate? I don't think any of us ex-Pentaxians were remotely bashing Pentax, I loved my FA 50, FA 135 and other Pentax lenses when I used Pentax but the K10D/K100D offerings just did not live up to the AF standard I required for motorsports shooting. I moved to Canon because of the AF performance primarily and went to a 40D/40D setup for my work which proved to be far more accurate and now run a 1DMk3/40D and a 5dMk2 on the way... I'm sorry to be brutally honest here but all three of those cameras have vastly superior AF to Pentax (at a much larger cost aside from the 40D of course so yes, the 5D2 and 1D3 are probably comparing apples to oranges vs the K20D).

As far as lens selection and your debate about lenses being readily available, yes they are if you prefer the manual focus route which while some may find an art and creative aspect to it I sure can't make money trying to MF a 200mph car. I searched high and low for decent zooms, long & fast primes and there just wasn't a thing.. FA* 300 2.8 on ebay for $2800 was the only one I ever found and it was snagged up in a heartbeat.

Pentax has great glass, it's just very limited when you compare it to the EF and EF-S offerings for my needs and obviously others on POTN.
Forum: Pentax DSLR Discussion 07-02-2008, 01:28 PM  
Canon 40D vs. Pentax K20D - from a wildlife photography perspective
Posted By smcclelland
Replies: 56
Views: 20,743
Hi Marc,

Ah I see... well doesn't that put the Canon at an already immediate disadvantage? :) Your AF will be far faster on the Pentax because AF systems operate wide open at the lenses maximum aperture.. so you're going to see a lot more hits and better focus lock on the f2.8 lens than on the 4.5 given that you're losing approximately 1.5 stops of light.

Technically the new Sigma model should work with the TC on the 40D and I know for sure it works on the MKII and MKIII (had a MKIIn, now have a MKIII). The older models wouldn't AF with a TC even on the MKIIn which was a very weird anomaly that I don't think anyone outside of Sigma understood :)

In regards to the contrast, this is largely due to your aperture values on the lenses... with the 1.4x TC on the 500 4.5 you're pushing into the realm of f8 which any camera is going to struggle to obtain focus at. However on the Pentax you're only achieving an aperture of f4 with the TC meaning that you've got plenty of light for the AF system to work with. In reality, AF isn't so heavily reliant upon contrast so much as it is the available light the AF system has to work with; if you were to pit the camera systems against one another using f2.8 lenses I think you would see a much better result and more consistency from both systems in the tests.

I shoot a lot of track side motorsports which can go anywhere from bright sunny days to horrible downpour overcast days but I also shoot night time motorsports events (American Le Mans) and rally events which put me in some pretty low light settings. I used to shoot with a 300mm f4 L but found it just could not hold up in the dense forests for rally shooting so I opted for the Sigma 120-300 f2.8 and haven't looked back since.. again, AF is primarily limited by the maximum aperture of your lens as all DSLR's that I know of AF with the lens wide open.

Wildlife shooting is indeed very taxing, I'd put it right up there in cost with motorsports for sure :)


Forum: Pentax DSLR Discussion 07-01-2008, 10:08 PM  
Canon 40D vs. Pentax K20D - from a wildlife photography perspective
Posted By smcclelland
Replies: 56
Views: 20,743
Interesting comparison, I've been gone from the Pentax camp for some time but just recently spotted the K20D at a local camera store. A few questions on my end (yep, I'm a Canon guy and shoot with two 40D's now so of course there's questions!). What lens was used for your testing on the 40D? If you were using the FA * 300 F4 then I hope you did the 40D justice and slapped a 300 F4 L on it to have a solid AF comparison :) Another note is the 40D is actually weather sealed however it is around electrical areas and display components (ports, screens etc). The AF issue seems odd if it's disabling itself with the 1.4x TC.. you'd need to have achieved an aperture greater than f5.6 for that to happen (meaning your lens would have been a f5.6 to begin with and the 1.4x made it an f8). Only 1D series bodies will AF at f8 unfortunately. Image stabilisation is overrated ;)

Good review nonetheless, I get tired of the whole "Nikon vs Canon" threads I always see as a Canon shooter and the K20D seems like a solid camera for the price. If you want to see some great AF on the 40D go borrow a Sigma 120-300 f2.8 and pop a 1.4x or 2x on there, drop the camera in center point AF and watch the grin spread ear to ear. That's my daily setup for motorsports and it hasn't let me down yet... the Siggy 500mm f4.5 is reserved for the longer tracks and will actually AF on the 40D with the new EX DG version. The older EX works but won't AF with a TC as I found out the hard way when I got my first copy.
Forum: Pentax News and Rumors 01-23-2008, 01:23 PM  
My Day with the K..D
Posted By smcclelland
Replies: 129
Views: 32,347
If Pentax can pull off a quality body with solid FPS performance and a spot-on AF system such as the 40D or even the previous 1D Mark II N then Pentax sports shooters such as yourself should rejoice. My concern is with the constant evolution of bodies there's still no support for long, fast lenses for the sports folk. The Nikon D300's 51-point area AF is quite phenomenal but if Pentax goes that route I would really hope they start pushing some more telephoto glass out in sync with such a body.

The example you posted is a common problem with any AF system, even my 40D and 1Dmk2n suffer the same fate with objects traveling towards camera (it's a depth perception issue) and Nikon's D300 and D3 have the same ordeal. The only alleviation I've had with this is strapping a 2.8 or faster lens (either the 120-300 Sigma 2.8 or the 70-200 2.8) on the 40D and using its increased AF mode with center-point. So Ben if you're reading this, put the bug in Pentax's ear about objects traveling towards camera with AF ;)
Forum: Photographic Technique 01-22-2008, 07:35 AM  
Extreme panning. How do they do this?
Posted By smcclelland
Replies: 34
Views: 5,835
Haha, I'll see what I can do. John shoots from the back of a pickup truck that Audi uses, I remember him saying that they literally strap him to the track like a parachute harness and then he's able to radio with the drivers to coordinate the shots.

Heh, commoners ;)
Forum: Photographic Technique 01-21-2008, 09:50 PM  
Extreme panning. How do they do this?
Posted By smcclelland
Replies: 34
Views: 5,835
Shot #1:

Rig shot, I dunno if you guys have them at any of the races but teams over here contract out to 'togs for shoots like this on tracks (look up John Thawley, he shoots American Le Mans series and does a lot of work for Audi). You can have two rig setups, one is a "tow" which is basically a cab extension the tog will sit in and fire away; the other is the suction method which is a bit riskier for the equipment but simpler to setup. One of the 'togs I was shooting the Toronto Grand Prix with did a few promo shots for some of the GPC cars and lost a 1D Mark III off a rig.

The zoom effect you are seeing is a mixed bag, you need to use a wide enough aperture to slightly blur the background but it needs to be big enough to capture the entire car in focus (think like with portraits where f11 details a lot of the face) and then use the zoom pull tactic where you crop tight on the car and pull the zoom back as you fire the shutter.

Shot #2:

Looks a bit more PP'd if you ask me, there's lots of blur on the track but look at the lamp posts that are still. A car with enough torque to launch with that lift is going to rip off the front line and smaller objects like those lamp posts are going to blur excessively. Looks to me like a still capture as well seeing as the horizon and angle of the car don't align.

Shot #3:

Trolling shot ;) Strap the tog to the car tightly, open the hatch and hang em out to snap away. Ballsy but effective!

As far as the materials go, any home reno store should carry the suction cups though some such as ones that window cleaners use would be of more industrial strength.

Keep on rockin with the motorsports stuff man, if I'm ever over in Oz I'll be sure to keep up with you and the Bigma that is if you don't mind a C***n 'tog standin beside ya!

Forum: Pentax SLR Lens Discussion 01-02-2008, 07:11 AM  
What lense do I need to get these results...
Posted By smcclelland
Replies: 22
Views: 5,554
If you can order online, it's hard to beat Camera Canada - Canada's for Cameras for their prices and the service is very professional and friendly.

I really have to suggest the FA 50mm f1.4 for candid indoor shots as the focal length on the crop sensor fits a bit better than the 77mm (both are astounding lenses and have their uses).

For wildlife, how long of a focal length are you looking for? I know blwnhr has had really good results with his Sigma 50-500 (Bigma) and when I shot Pentax I had rented a Sigma 100-300 f4 EX for a while which was tack sharp at 300mm with a price that won't break the bank.

I'd probably suggest:

Indoor: Pentax FA 50mm f1.4
Wildlife: Sigma 100-300 EX f4
Wide Angle: Pentax DA 12-24 OR wait for the unannounced DA * wide angle if cost is no concern.
Forum: Pentax SLR Lens Discussion 01-02-2008, 07:01 AM  
Sigma 28-70/2.8 EX FG or Sigma 17-70/2.8-4.5 Macro DG?
Posted By smcclelland
Replies: 16
Views: 5,660
I own the Sigma 17-70 in a Canon mount and find it to be a wonderful lens for the price. I almost went the route if a Sigma 18-50 f2.8 but backed away as I heard many stories of it being too soft wide open.

My vote goes with the 17-70.
Forum: Pentax SLR Lens Discussion 01-02-2008, 06:57 AM  
What's your favourite lens?
Posted By smcclelland
Replies: 27
Views: 3,820
Peter, you own what used to be my favourite Pentax lens for the short time I owned it which was the FA 135mm f2.0!
Forum: Pentax DSLR Discussion 01-02-2008, 06:51 AM  
Considering switching from 40D to K10D
Posted By smcclelland
Replies: 9
Views: 2,415
Having used both systems I'll try to play the neutral point here as best as I can.

I must agree with Chako, Pentax makes some truly stunning glass and while I found the selection to be sparse when I was shooting Pentax I found that the results spoke for themselves (even the kit 18-55 churned out some fantastic colours). The SR built into the body is a neat idea, however it's not really the be-all-end-all solution that people play it out to be. For some things indoor I found SR to be a nice benefit, however when I invested in my FA 50mm f1.4 that changed as I found I was able to get the shutter speeds I needed without having to turn on SR.

For the Canon side, the 40D is a very nice camera and I own one myself as well (40D, 1DMkIIN and a 400D) and while it does not offer you the built in image stabilisation it's certainly a versatile camera and more than adequate to fill both prosumer and professional needs. I completely agree with you on the cost basis of Canon, once you step into IS territory your lenses can go up anywhere from $300-$600. Personally, I own one lens that has IS which is my 100-400 L lens and that's it, all others I've come to use the common practice of using a shutter speed 1/focal-length or greater to prevent camera shake.

Go test out the K10D at a local shop, get a feel for it and try some Pentax glass.. Also, have a look at the Canon 85mm 1.8, 50mm 1.8 or 50mm 1.4 as they are generally less expensive lenses but provide more than adequate light for indoor shooting. If you've invested in a 40D and 17-40 f4 L then you are going to be reselling at a loss but going from Canon to Pentax you should be able to get a significant amount of gear for what your current setup will fetch.
Forum: Post Your Photos! 01-02-2008, 06:37 AM  
More motorsport with the K10D and the Bigma.
Posted By smcclelland
Replies: 10
Views: 1,391
And so he returns wielding the mighty Bigma! Nice shots again man, was waiting to see if you'd return with some more photos (curse you Aussies and your nice weather, we're burried under snow and sub degree temps now). Looks like the Bigma's been treating you quite well!
Forum: Post Your Photos! 09-29-2007, 12:03 AM  
Motorsport - K10D+Bigma - Who says Pentax doesn't do sport!
Posted By smcclelland
Replies: 18
Views: 2,875
i wondered when you were going to get around to tempting people with some motorsports shots using the Bigma in a Pentax mount! Nice shots, #1 is a real cracker!
Forum: Pentax DSLR Discussion 09-14-2007, 09:49 PM  
Compare Canon and Pentax AF Performance For Action Sports
Posted By smcclelland
Replies: 76
Views: 8,920
Looking good man! A quick side note for any panning shots you might want to experiment with starting at 1/250 and working down as 250 will still give you some nice background blur and if you can knock it down to the 1/125 range or lower you'll get some awesome effects :) Photo looks nice and sharp, the 50-135 is a superb lens and I'm sure the SDM probably lends a nice helping hand with the AF-C.

Keep up the great work Gary, look forward to seeing more test shots and seeing how your sports shooting develops :)

Forum: Pentax DSLR Discussion 09-14-2007, 12:32 PM  
Compare Canon and Pentax AF Performance For Action Sports
Posted By smcclelland
Replies: 76
Views: 8,920
Haha, seems I have struck a rather sensitive note with you... might want to watch the knee jerk reactions.

I'm on this forum because even though I used to own Pentax gear, I still like to communicate with the great photographers here and share whatever advice I can in regards to action sports photography whether I shoot with Canon, Nikon, Pentax or a damn disposable camera.

People's opinions vary, I find Canon benefits the needs of action sports photographers and there's many other people who will back this claim up. As for your little remark about the 400D, I'm open to hearing what your experience is about it's "crappy construction" seeing as it's a quite capable camera and even as my backup it does the job it should.

This I will challenge you on whole-heartedly. I know the K10D is a good camera, hell it might even push into great territory however when it comes to action sports photography I don't think it is quite so able. K10D is loaded with great features, but a body is not what defines a system or makes the pictures.

My "fantasticness" about Canon was not so much in regards to the bodies themselves but moreso the lenses. I can at least reach into my bag and pull out a fast telezoom without having to call a store rep and hear the typical line of "oh it's coming soon" or "actually it's been discontinued" such as I heard in the Pentax camp.

With that out of the way, would you like to edit your post and actually contribute to this thread now?

Here to stay,

Forum: Pentax DSLR Discussion 09-13-2007, 12:17 PM  
Compare Canon and Pentax AF Performance For Action Sports
Posted By smcclelland
Replies: 76
Views: 8,920
Well, depending on what you shoot you can typically outfit your canon bag for roughly the same cost I've found :) Obviously if you're an "L Freak" then the story changes and you'll be spending significantly more than expected. A common kit in the Canon camp that I've seen frequently is:

Canon 10-22 (some replace this with a Sigma for better price)
Sigma 17-70
Canon 70-200
Canon 1.4x TC
Canon Nifty Fifty (50mm f1.8)

Glass I can highly recommend for Canon equipment... the Sigma 10-22, Sigma 17-70, Canon 24-105 L (big $$$ but phenomenal IQ), Canon 70-200 f4 L (IS or non-IS), Canon 100-400 L, Canon 300mm f4 L, Nifty Fifty and the new IS kit lenses are looking really nice. DO NOT FALL FOR THE "DO" CRAP!

I don't want to advertise other sites or anything, but use this link as a means of obtaining some good lens information for Canon stuff.

-=Lens Sample Images Archive=- (work in progress) - Canon Digital Photography Forums

Don't always believe the L freaks either, there's some stunning Sigma glass available at a fraction of the cost of it's Canon counterpart and the money saved can always be put to better things (used mine for a 24" iMac to compliment the macbook :))

Goodluck and again, if you need anything you have my email address or PM me and I will do my best to help out!
Forum: Pentax DSLR Discussion 09-12-2007, 11:09 PM  
Compare Canon and Pentax AF Performance For Action Sports
Posted By smcclelland
Replies: 76
Views: 8,920
I know I am coming into this a bit late, and hopefully I can provide some insight into what I have experienced in my sports shooting being an ex Pentax user and a now Canon sports 'tog.

My experience with Pentax AF is very touch and go, my biggest concern with the Pentax was the focus speeds and inconsistency as mentioned especially when tracking fast moving objects such as I do. It wasn't always horrible, but the focus time was really annoying when you would try to capture a split second occurence. I used both Pentax and Sigma lenses for sports shooting, I never had the opportunity to try an SDM lens so I can't speak on behalf of any of those.

As for your prefocussing suggestions, it works if you want still frames but in all honesty we know that in most sports situations there is never a 'designated' path whether it be motorsports, soccer, football or whatever (ok, baseball is an exception).

Now for the dark side (Canon), currently right now I am shooting with a 400D and 40D setup thanks to my girlfriends father who owns one and let me use it as a test-bed. Initial impressions of both bodies are fatastic, ISO performance is very nice, shutter is quiet on the 400D and almost silent on the 40D. Focus speed is most impressive when using USM lenses and is astonishingly quiet (doesn't matter noise wise to me). I shoot with a 70-200 f4 L and have also used the 100-400 L, both of which are stunning glass and rank highly among sports photographers (the 70-200 f4 is the sharpest and highest IQ lens Canon has in its arsenal of available lenses).

AI Servo mode on both bodies works a treat, the 40D sports a nice feature for fast aperture lenses with center weighted focus allowing much faster focussing speeds with a 2.8 or faster lens (for those night shooters). I used a borrowed 75-300 lens initially to shoot Le Mans cars and while the lens itself wasn't acceptable in my books, the USM achieved a solid lock in AI Servo with spot on focus and within a split second. My 70-200 focuses in an eyeblink, as does the 100-400 (another perk to the L series glass) and I've yet to hear any complaints about either lenses. IQ is astounding on both lenses, even with a 1.4x TC on my 70-200 f4 it holds up amazingly well with a very minimal loss of IQ and hardly any noticeable focus speed drops.

Overall, the 40D is a cool body with lots of great features however if you are looking to stretch your money to the absolute maximum I would suggest going with a 30D (they can be had up here for $999.99 with the 18-55 kit lens) and dropping the rest of the money into your lenses. A 100-400 on the grey market will set you back roughly $1100, a 70-200 f4 about $500, 70-200 f4 IS $700-800. Another worthy opponent in the Canon field is the Sigma 100-300 f4 EX lens (much like what you already own), an extremely solid contender and tack sharp with superb IQ (Sigma stuff I tend to bump my settings +1 with though).

Both systems are great, I still love the IQ I got from my Pentax lenses but the decision for me was simply made because I was taking my motorsports photography more seriously and needed equipment that could keep up with the demands I had. Hopefully some of the information provided was useful, if you need any tests of sorts or want some test shots feel free to let me know and I will snap some for you :)
Forum: General Talk 09-12-2007, 10:46 PM  
Planning second system.
Posted By smcclelland
Replies: 5
Views: 2,600
Is a second system really the answer? From a personal or business standpoint I would say owning two systems doesn't really lend itself to being very efficient or cost effective. I switched a little while ago from Pentax to Canon, having made a considerable investment in Pentax glass I knew that I'd be able to at least fund a good supply of lenses for my motorsports photography with the new system.

Owning two systems is going to mean spending double the money essentially as you will most likely find yourself hopping back and forth between lens/equipment choices for both systems.

As for Nikon versus Canon, a body is a tool which you the artist manipulate into what you need so in that regard I'd say go with what you feel comfortable using and what fits your needs. I simply cannot argue the sheer beauty that Canon L glass offers (I own the 70-200 f4 L currently with a 24-105 f4 L on the way and a 100-400 L as well), if you have the chance to test a 70-200 L series then take the f4 IS version for a spin; I can guarantee you will not be disappointed :)

Goodluck with your decision, my suggestion would still be to sell the Pentax gear and invest in a single system which allows you to stock more equipment and get better bang for the buck so to speak.
Forum: Pentax DSLR Discussion 09-06-2007, 12:41 PM  
Sigma lens choices - Which one for K10D?
Posted By smcclelland
Replies: 9
Views: 1,676
Ahhh my bad, I missed the DL part for the 100-300.

If you're on a budget, the APO DG 70-300 is a fine lens and I owned one for a while shooting motorsports. As long as you've got sufficient light you'll do just fine with it.

For your 500mm end, hands down on the Bigma as the 170-500 isn't quite as good (plus the focal range just seems bland). As big as it is, it can really come in handy for times when you just want to bring a wide angle lens and the Bigma as your kit. I see a lot of guys at motorsports events shooting with it and it works well for them.

If you can find a 100-300 f4 in a Pentax mount (difficult now because they've been discontinued) I'd suggest that over the 70-300, but you will also be paying a little bit more.
Forum: Pentax DSLR Discussion 09-06-2007, 11:13 AM  
Sigma lens choices - Which one for K10D?
Posted By smcclelland
Replies: 9
Views: 1,676
Why might I ask are you replacing the Sigma 100-300? That's one of the sharpest lens that Sigma has to offer in its collection and at a constant f4 you can tack on a 1.4x TC for even more reach. The 70-300's are alright, but would be a very big step down from the 100-300. The Bigma (50-500) is nice as well but can become reasonable soft at the long end and significantly heavier.

The 100-300 with a 1.4 TC will give you 420mm giving you a 630mm on a APS-C sensor. The bonus to the crop is that it trims out any weaker corner resolution that the lenses may produce (this helps the Bigma quite a lot because it's corner performance falls off further into the long end).
Forum: Sold Items 09-02-2007, 02:05 PM  
For Sale - Sold: FS: Lenses!
Posted By smcclelland
Replies: 9
Views: 2,302
all items sold, thanks to those who were interested and hope the buyers enjoy their new lenses :)
Forum: Pentax SLR Lens Discussion 09-02-2007, 10:13 AM  
Photozone cancels testing of new DA* lenses
Posted By smcclelland
Replies: 22
Views: 4,526
The centering defects as someone stated earlier are not limited to just the Pentax models, many reviews even of Canon L glass have had the exact same issue. Generally in this case he will test multiple copies (he tested 4 consecutive copies once of a L series piece of glass and only on the 4th did he achieve a proper test bed). The camera has nothing to do with it really unless the unit itself is defective, he tests all Canon grade lenses with a Rebel 350d to keep the same consistency. There is no perfect lens and as much as QC inspects there's going to be flaws or a bad batch might slip through.

I do agree with Gary in this instance though about testing second-hand products, it's a risky business but I also don't see why the manufacturers aren't providing him test lenses. I used to do some automotive work and companies would ship us out products for review, they'd have a 10 day 'lease' so to speak and if we didn't have the product back in 10 days the company would have to pay the full price of the product. For larger things like superchargers or what not we'd ask for longer periods as install and other things had to be factored in but generally the manufacturers were good with it. Albeit this was a registered publication and photozone seems to be more of a public/personal endeavour even if it is a pretty strong authority for reviews in the photography field.

As for the Canikon glass, I just purchased a 24-105 and a 70-200 f4 and it took me 3 different copies of the 24-105 to find a sharp lens and 2 field tests to get a good 70-200 f4. So yeah, even Canon users have the same problems and we're paying for supposed "Luxury" glass :)
Forum: Pentax SLR Lens Discussion 09-02-2007, 10:00 AM  
FA series input please
Posted By smcclelland
Replies: 7
Views: 1,553
I owned a FA 50mm f1.4 and a FA 135mm f2.8 [IF], both were exceptional lenses with a real solid build and amazing IQ. I also tested a FA 35 f2.0 which was another exceptional lens, the build quality of the FA series is very nice and the IQ I found was some of the best I'd used. As for the 77mm, if you search the boards you'll find a few topics in regards to the lens, I believe it holds a fair amount of praise :)
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