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Forum: Pentax SLR Lens Discussion 03-21-2009, 09:16 PM  
Tamron SP 90mm f/2.8 1:1 Macro non-Di on Flowers
Posted By loudbay
Replies: 27
Views: 7,218
Hinman, Here's my favorite of both sets... Again, the sigma. I even looked for one to purchase, although I'm not 'in the market'.

Cheers, Matt

http://www.flickr.com/photos/hin_man/3340023794

Edit: This image is just 'retarted'. Is that what the kids say nowadays?
Forum: Pentax SLR Lens Discussion 03-19-2009, 09:23 PM  
Tamron SP 90mm f/2.8 1:1 Macro non-Di on Flowers
Posted By loudbay
Replies: 27
Views: 7,218
Hinman, I realize that the shooting environments were anything but controlled, but I scrolled back and forth for quite a while, and I have to say the Sigma is my favorite in both macro and portrait sets. I don't know if I should have said anything as I really would not want to influence your decision. I have a 50mm Sigma macro, and the build quality is excellent, I'm assuming the 100mm is similar. Without having handled the Tamron, I'd have to say it would have to be very nice to edge out the Sigma in this department...

Cheers,
Matt
Forum: Pentax SLR Lens Discussion 03-19-2009, 08:26 PM  
Sharpest lens, any brand, ever?
Posted By loudbay
Replies: 48
Views: 18,018
I haven't posted on the board for quite some time. You, falconeye, have brought me out of hiding. Congrats. Or rather, thank you...

Eagerly waiting for more 'developments'.

Matt
Forum: Post Your Photos! 04-02-2008, 06:40 PM  
Atlanta Aquarium [5 BIG images]
Posted By loudbay
Replies: 18
Views: 2,541
Buddha, those are really good. With your "lens hood" you should go nuts with an off camera flash, it should really help with that slow lens you mentioned.

Matt
Forum: Pentax SLR Lens Discussion 04-01-2008, 06:05 AM  
Your best deals?
Posted By loudbay
Replies: 43
Views: 5,016
I found a local seller on craigslist that let his da* 50-135 go for $500. This is kind of on the opposite side of the scale from you guys, but still my best deal yet.

Matt
Forum: Pentax SLR Lens Discussion 03-28-2008, 08:10 AM  
Poll: Question for 16-50mm owners
Posted By loudbay
Replies: 1,099
Views: 111,586
I'm considering getting this lens, and for what it's worth, those results would not be acceptable to me. I've seen much better test shots from this lens.

Matt
Forum: Pentax SLR Lens Discussion 03-27-2008, 07:29 AM  
Which zoom would you recommend?
Posted By loudbay
Replies: 25
Views: 2,859
Good choice Aegisphan. I've been contemplating upgrading my Tamron to the 16-50, but I kind of like the overlap, I don't go changing lenses as much... Although I don't think my Tamron is as sharp as some of those shots in that gallery posted above.
Forum: Pentax SLR Lens Discussion 03-26-2008, 08:14 PM  
Which zoom would you recommend?
Posted By loudbay
Replies: 25
Views: 2,859
Aegisphan,

Flickr: Photos from MCLauterbach

Here's some shots in a poorly lit gym with one on camera flash (into reflector, not at climbers) and a single slave in most shots. Similar conditions to a poorly lit wedding reception. All except the last portrait are with the Tamron. The last portrait is with the 50-135. You should get both. And a second body. Then you're good for sure. Good and broke. But definitely mark my vote for the Tamron. Could be a bit sharper at 2.8, but I'm comparing it to my DA* 50-135 now. Before I got that lens, I was 100% happy.

Enjoy.

Matt

Edit: 1 from the Tamron:

Forum: Pentax SLR Lens Discussion 03-23-2008, 08:31 PM  
For everyone who helped me
Posted By loudbay
Replies: 22
Views: 3,191
Rosemary, Those specs I listed were for the shot you posted. I actually re-edited after I opened your photo in PHOTOME. It tells you all the info from a shot. It's free on the net if your interested. Let's you peak into how a photo was shot. I really was just telling you that if you post great photos people will want to know (and not everyone knows about PHOTOME).

Cheers, Matt
Forum: Pentax SLR Lens Discussion 03-20-2008, 10:34 PM  
tamron or sigma?
Posted By loudbay
Replies: 7
Views: 1,176
You already have some killer glass... I think most lenses in the focal length range you're looking for will be inferior to your Tamron 28-75 and your 100mm Macro (well most of the rest too, but these two lenses would make a decently small kit for the range you described).

Matt

Edit: Bring your 1.4x too. Done and done.
Forum: Pentax SLR Lens Discussion 03-20-2008, 10:26 PM  
For everyone who helped me
Posted By loudbay
Replies: 22
Views: 3,191
Congrats Rosemary. Your new lens definitely found a good home.

Matt

Edit: With such great pictures comes great responsibility. Post your data for us (e.g. ISO 100, f/2.5, 1/180s, hand held, Av). Was that wide open? M
Forum: Pentax DSLR Discussion 03-19-2008, 06:58 AM  
Need to get a flash.. but what? (College student)
Posted By loudbay
Replies: 31
Views: 5,678
I have a couple Nikon SB24s, they are great, better build quality than Vivitar stuff. Full manual control. That being said, I have a few Vivitars too. Nothing wrong with them. The 285 have manual controls built it, the 283 has a few settings, but for real manual control, there is a adapter you can find for 20 bucks or so, the varipower adapter. The Nikon sb26 has a built in optical slave, that's nice. For photo class, I would find a cheap 283 or 285hv. The 283s that say made in China should be safe to put on your camera hot shoe as well as the 285hv (please measure your trigger voltage yourself, I can only speak for my copies of this flash). Then look for a sb26 w/ built in optical slave (free) for your second flash. Then... Well I'll stop there, you'll be in up to your neck in no time.

Cheers, Matt
Forum: Pentax SLR Lens Discussion 03-18-2008, 09:55 AM  
Tokina zoom ?
Posted By loudbay
Replies: 8
Views: 1,665
+1 for the DA* 50-135!!
Forum: Pentax SLR Lens Discussion 03-18-2008, 08:39 AM  
am I insane (31 and 35macro)
Posted By loudbay
Replies: 16
Views: 2,583
aegisphan beat me to it.

Check out this thread from a few days ago:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/22694-help-macro-selection.html

My sigma 50mm f2.8 achieves 1:1 at about 2 inches from the front element to the subject. I can't imagine going any closer.

Matt
Forum: Pentax SLR Lens Discussion 03-18-2008, 08:35 AM  
any 50mm macro users?
Posted By loudbay
Replies: 9
Views: 1,205
I've got a Sigma 50mm f2.8 and it's really sharp.

Check out this thread:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/22694-help-macro-selection.html

Basically at macro magnification, the DOF is not affected by the focal length. As soon as you focus in a normal situation you betcha the 50mm has more DOF, but not at macro. And to be honest the field of view isn't as big of a difference as I expected either. It boils down to working distance more than anything.

Cheers, Matt
Forum: Pentax SLR Lens Discussion 03-18-2008, 08:31 AM  
Lens for Aquarium Shooting
Posted By loudbay
Replies: 10
Views: 2,366
Buddha, my local photo store has cheapie collapsible rubber hoods. They look more like a coaster when folded up, or vacuum attachment when in place, but they'll work (cheap too). I used the metal hood from my 28mm f3.5 Tak on a M 50mm, and that worked reasonably well too.

Cheers, Matt
Forum: Pentax SLR Lens Discussion 03-18-2008, 08:27 AM  
How to get more DOF??? Help
Posted By loudbay
Replies: 12
Views: 1,662
rmtagg,

I actually like that photo a lot. The one petal that's perpendicular to the lens looks great and the out of focus (oof) area looks really nice.

Every lens has a sweet spot where it performs best. Usually f5.6 or f8. It's different for every lens. That being said, you can stop down way past that to f22 (like those orchid photos from the other day) and get heaps of area in focus. Your lens at these small apertures suffer from 'diffraction'. Basically diffraction is the extra light bouncing around inside your lens that will deteriorate image quality.

Here's a good link:
Understanding Lens Diffraction

luminous-landscape is a pretty good sight to browse as well.

It all doesn't NEED to be in focus. Some photos are better without a huge DOF.

Did you decide on a macro lens?

Cheers, Matt

Edit: you have flowers out already?!? You lucky dog you.
Forum: Sold Items 03-17-2008, 12:23 PM  
For Sale - Sold: SIGMA DL(Low Dispersion)75-300 f:4-5.6 MF 40$
Posted By loudbay
Replies: 6
Views: 2,076
PM sent.

Cheers, Matt
Forum: Sold Items 03-17-2008, 12:12 PM  
For Sale - Sold: FS: PZ-1p, AF 500FTZ flash, lenses, bellows & slide copier
Posted By loudbay
Replies: 14
Views: 2,858
PM sent regarding Zenitar as well. (2nd in line)

Thanks, Matt
Forum: Pentax DSLR Discussion 03-17-2008, 09:37 AM  
K20D + Lenses: Please critique my game plan
Posted By loudbay
Replies: 22
Views: 2,804
Your next lens should be the 50-135 paired with the Tamron 1.4x That will round out your longer end quite nicely. There's a thread right now with examples of this combination. Very good results.

Matt
Forum: Post Your Photos! 03-16-2008, 05:19 PM  
Bouldering Competition in Boulder, CO
Posted By loudbay
Replies: 2
Views: 1,583
I couldn't do much with lighting from up top There were 100 or so climbers all working their way through the circuit of problems. Rather than 'setup time' I just saw someone starting on a problem I liked, then picked a spot to drop the slave. One, maybe two shots, then it was over. And getting shots without other competitors or spotters or kids right there was tough too. I wouldn't wait for another climber at each problem, I would just move on after the shot. Most of the time, there wasn't someone waiting to hop on the problem that the photographer was shooting. Imagine that. With some setup time, I could setup fills at a couple spots that I liked, maybe next time.

That third shot you like was actually way underexposed. I meant to a little, but dang...
Forum: Post Your Photos! 03-16-2008, 04:35 PM  
Bouldering Competition in Boulder, CO
Posted By loudbay
Replies: 2
Views: 1,583
I'm pretty happy with what I captured considering it was short notice and pretty much 'run n gun' as far as seeing a climber start a problem, run past drop the flash, run back, drop down, shoot, and hope that they're not past your chosen spot by then. Lots and lots of fun, and like I said I was pretty happy with some of the different looks I was going for. Thanks for any comments.

Matt

These are from my Tamron 28-75 f/2.8 and the last is the DA* 50-135 doing what it does best.









The rest are here:
Flickr: Photos from MCLauterbach
Forum: Pentax SLR Lens Discussion 03-16-2008, 04:24 PM  
Help with Macro selection
Posted By loudbay
Replies: 33
Views: 3,770
Wow, the field of view isn't really that different either in this not so exact comparison... Very interesting...
Forum: Pentax SLR Lens Discussion 03-16-2008, 04:20 PM  
Tamron 70-200 to replace my DA*50-135?
Posted By loudbay
Replies: 33
Views: 6,078
With the 1.4x and 50-135, You're at 70-189 f/4. I think that's actually pretty reasonable to retain the 50-135 image quality and SDM albeit losing a stop of light. For me, if I ever feel the lost speed hurt, I think the DA* 200 would work with a bit of foot work, retain weather sealing and SDM, and turn into a nice 280 f/4 with your converter.

Man I need a janatorial job at night to buy more lenses... Well maybe something other than that, but still...

Cheers, Matt
Forum: Pentax SLR Lens Discussion 03-16-2008, 02:32 PM  
Tamron 70-200 to replace my DA*50-135?
Posted By loudbay
Replies: 33
Views: 6,078
You guys are crazy talking about ditching the 50-135. It's such a nice lens... I think the Tamron 1.4x which will work with HSM and a DA* 200/2.8 is what I'll be doing. Oh heck I just reread and you already have the 1.4x.
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