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Forum: Photographic Technique 01-27-2009, 10:44 PM  
Lenses and paintball
Posted By Fireball
Replies: 49
Views: 8,783
Yep, seen that photo before :) That Canon 28-300 ook a hit to the UV filter. The filter shattered but amazingly the front element was unscratched (!) and after the paint was cleaned off, there were no ill effects of the hit (other than the author having to invest in a new filter).

Let me scrounge around for that photo...

http://photography-on-the.net/forum/showthread.php?t=86465
Forum: Post Your Photos! 01-15-2009, 05:37 PM  
43 MP Hong Kong Skyline
Posted By Fireball
Replies: 8
Views: 3,226
Sincerest apologies. Thanks for correcting!
Forum: Post Your Photos! 01-15-2009, 04:47 PM  
43 MP Hong Kong Skyline
Posted By Fireball
Replies: 8
Views: 3,226
I completely agree :) The neon lights aren't exactly the best for the metering I chose which was to properly expose the buildings.

Would you mind telling me how to add in this fill layer of black? I'm a bit of a post processing newb, but would be completely interested in your advice!

Thanks for the comments everyone!
Forum: Photographic Technique 01-14-2009, 10:49 PM  
Lenses and paintball
Posted By Fireball
Replies: 49
Views: 8,783
Because then you wouldn't be able to get shots like this:

PaintballPhotography

I guess it's sort of thing where you do it 'just because you can' :)
Forum: Post Your Photos! 01-14-2009, 10:00 PM  
43 MP Hong Kong Skyline
Posted By Fireball
Replies: 8
Views: 3,226
Well, not really ;)

5 images stitched from K10D. Hope this is worthy of your perusal and time!

(Apologies if this isn't the appropriate size for a panoramic...I have never posted one before!)



Original image / full size: http://www3.telus.net/tnwong/Pictures/HK.jpg
Forum: Photographic Technique 01-14-2009, 09:41 PM  
Lenses and paintball
Posted By Fireball
Replies: 49
Views: 8,783
Doubling up on a UV filter should be sufficient protection from a direct impact, in addition to using a hood. From a reasonable distance the paintball may shatter a single filter (I have seen a shattered filter with the front element still intact and unharmed, so doubling up may give you 'extra insurance'). However, many tournaments do not allow photographers to film from anywhere aside from the side lines.

However, with the spray, I would suggest that you set aside several hours for cleaning your camera as any sort of ribbed rubber surface will just be an absolute hassle to clean. Weathersealing may also be good insurance against the paint seeping through any body cracks, since that stuff is oil and gelatin based and is not good for any plastics or electronics if you aren't able to clean it off within a reasonable amount of time.

Lastly - keep your mask on and have fun shooting (in a different way)!
Forum: Lens Clubs 11-16-2008, 11:24 PM  
The Tammy Club!
Posted By Fireball
Replies: 2,749
Views: 474,638
I love my 28-75, but I recently sent it into Tamron Canada for a clean and recalibration.

It came back with no focus corrections (even though the invoice says that the technician did indeed perform a focus calibration), and even worse, one of the front inner elements has a scuff on it!

Needless to say, I had a few colorful words when I discovered the mishap and this lens will have to go back to Tamron for further work :(

But, I have had good times with it...sample picture below:

Forum: Pentax SLR Lens Discussion 09-18-2008, 09:09 AM  
Some Takumars radioactive?
Posted By Fireball
Replies: 33
Views: 14,711
Hey, at least it can be a cheap alternative to a vasectomy.
Forum: Pentax DSLR Discussion 07-23-2008, 08:19 PM  
Practical tests for focus checking?
Posted By Fireball
Replies: 9
Views: 2,824
I have already used that chart, and the results exhibit moderate BF/FF depending on the focal length. However, my problem is that in most cases, real life shots are not consistent with this, but there are the occasional ones that seem to exhibit misfocusing.
Forum: Pentax DSLR Discussion 07-23-2008, 12:04 PM  
Practical tests for focus checking?
Posted By Fireball
Replies: 9
Views: 2,824
Every now and then I get misfocused shots that I previously attributed to user error, but even with myself being cognaizent of my focusing and shooting techniques, I still get some misfocused shots which makes me curious as to whether the error lies with the equipment instead of the monkey bethind it :)
Forum: Pentax DSLR Discussion 07-22-2008, 11:46 AM  
Practical tests for focus checking?
Posted By Fireball
Replies: 9
Views: 2,824
Thanks for the reply! I just would like some clarification as to what you mean by using the "metal garden table" as the scale? Furthermore, is there any particular reason for using 10-12 feet as the "benchmark" point?

Further replies are appreciated!
Forum: Pentax DSLR Discussion 07-21-2008, 10:49 AM  
Practical tests for focus checking?
Posted By Fireball
Replies: 9
Views: 2,824
Hey all,

I have a Tamron 28-75 that has me worrying about it. I've had it for over a year and a half now, and shooting focus charts (the D70 test chart and Yvon's new test charts), it looks like I have varying BF / FF depending on the focal length, under multiple test conditions (fluorescent lighting, daylight, incandescent).

However, in real life shooting, I cannot ascertain any real issue, but I am worried that this perspective may be ascribed to the fact that I simply do not understand "how sharp is sharp". Perhaps someone could please post a 100% crop of what would be considered "sharp". Most of the time, I attribute misfocused shots simply to user error, but in retrospect (especially with how careful I am with my shots), I am beginning to question whether or not my concerns of BF / FF are legitimate.

Therefore, I am wondering if there are any "practical" tests to check if a lens is back or front focusing. I am somewhat leery of using a test chart (even though it has been "proven" to work properly for many people) because of the seeming discrepancy between what I see when I am shooting in real life conditions, versus what I am being told (that my lens is exhibiting moderate BF/FF depending on the focal length) by the test charts.

Furthermore, I am curious as to whether anyone here on the forums has ever sent their Tamron 28-75 back to Tamron for calibration? I live in Canada, so I would have to send the lens to Amplis (which I assume would pass it on to Tamron Japan). Anyone have anecdotes as to whether or not the calibration is worth the time and effort (I am within warranty, but would hate for my lens to somehow come back in worse "shape" than it currently is in, especially if it is working within spec right now).

Thanks in advance for any reads and replies!

Cheers,

T
Forum: Pentax DSLR Discussion 07-10-2008, 01:41 PM  
Will your K200d + Kit Mk 2 behave like this??
Posted By Fireball
Replies: 18
Views: 3,854
All of my Pentax and non-Pentax lenses AF beyond the marked infinity point.
Forum: Pentax DSLR Discussion 07-07-2008, 10:24 AM  
perils of SR too close?
Posted By Fireball
Replies: 7
Views: 2,022
You are agreeing on a point he didn't even make?
Forum: Pentax DSLR Discussion 06-27-2008, 01:30 PM  
Not very happy with Pentax service Belgium - Germany
Posted By Fireball
Replies: 11
Views: 3,806
RH saying he loves Pentax is like saying Paris Hilton is the US ambassador to the UN.
Forum: Pentax DSLR Discussion 06-18-2008, 09:05 PM  
Anyone bought in Hong Kong recently ?
Posted By Fireball
Replies: 14
Views: 2,319
My mistake then...perhaps it is a bit of a cultural disparity between North America and Australia. Hope I didn't cause you any embarassment / negative feelings!

With that said, the difference between AUS prices and HKD prices may be due to the HKD being somewhat benchmarked against the USD price? Regardless, I believe my error may have been in thinking Calumet was an AUS retailer. Whoops!

Sorry for any misinformation! I think I'll walk out of here while I still have a bit of my reputation intact :)
Forum: Pentax DSLR Discussion 06-16-2008, 10:02 PM  
Anyone bought in Hong Kong recently ?
Posted By Fireball
Replies: 14
Views: 2,319
On a related note, HK prices seem on par with those in Aus.
Forum: Pentax SLR Lens Discussion 05-09-2008, 05:48 PM  
What Do You Don't Like About Your Pentax Lenses?
Posted By Fireball
Replies: 60
Views: 8,401
I dislike the lack of SDM / HSM / USM / __M in the lenses.

Sometimes having a screw whirring draws unneccesary attention to yourself.
Forum: Pentax SLR Lens Discussion 05-01-2008, 09:44 AM  
Sigma 70-200 2.8 HSM
Posted By Fireball
Replies: 7
Views: 2,230
Just e-mailed Sigma and the CR said that last she checked, the lens was on schedule for the market sometime in June. She wouldn't give me an exact date.
Forum: Pentax Camera and Field Accessories 04-22-2008, 10:06 AM  
Circular polarizers
Posted By Fireball
Replies: 13
Views: 2,934
Thank you kindly for your replies!
Forum: Pentax DSLR Discussion 04-21-2008, 11:28 PM  
Pentax Shutter Count...up!!!!
Posted By Fireball
Replies: 308
Views: 58,160
2768, bought new August 2007.
Forum: Pentax DSLR Discussion 04-21-2008, 11:27 PM  
K10D update and Model Revision 8.1 Yes /No??
Posted By Fireball
Replies: 148
Views: 25,633
I could only get the Rev data from my RAW files. JPG converted from LR and edited in photoshop seems to have stripped 'extraneous' EXIF data.

Manufacture date of May 18. Revision 8.1. Been back to the factory once for a cleaning (it was filthy out of the box), and firmware was re-flashed from 1.3 back to 1.0.

Maybe this is why I have never encountered as much low light hunting as some of our members claim?
Forum: Pentax Camera and Field Accessories 04-20-2008, 01:19 AM  
Circular polarizers
Posted By Fireball
Replies: 13
Views: 2,934
Hey all,

Thanks for all the help you guys have given so far. Sorry I haven't been able to reply to individual posts - I'm in the middle of final exams, and everyone knows how crazy those get :S

Anyways, I am trying to find a 67mm circular polarizer, and am curious as to what characteristics make for a good polarizer. As far as UV filters go, I know that multi coatings are the way to go, but does this also hold true for circ pols?

Any particular brands I should look at? Some of the circ pol prices look like they could break the (my poor student's) bank account!

Thanks in advance for the replies!

Cheers,

T
Forum: Pentax SLR Lens Discussion 04-16-2008, 09:29 PM  
Updated DA* 60-250 Picture
Posted By Fireball
Replies: 8
Views: 2,481
Saw this over at DPR. Looks like the revamped version has a tripod collar, while maintaining the same length by shrinking the huge focus ring and slightly cutting down on the zoom ring length.

Pentax da 60-250 old new.jpg photo - Kees de Haan photos at pbase.com

pentax k20d 60-250.jpg photo - Kees de Haan photos at pbase.com

Pentax DA 60-250 PMA.jpg photo - Kees de Haan photos at pbase.com
Forum: Pentax DSLR Discussion 04-14-2008, 12:33 PM  
Pentax Warranty Repair
Posted By Fireball
Replies: 6
Views: 2,922
I sent mine to Pentax Canada. As you know, we Canadians are the oddball of the bunch :)
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