Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
07-07-2011, 10:45 PM   #91
Inactive Account




Join Date: Jul 2011
Posts: 6
Es un gran lente. La luminosidad y colores que da, son muy satisfactorios.

07-08-2011, 02:14 AM   #92
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
QuoteOriginally posted by Genshu Quote
By 100% magnification do you mean like cropping a small piece of the photo and seeing what it looks like?
I just mean viewing the original photo at full-size, with no scaling, so that pixels are being displayed on the monitor at a 1:1 ratio. On a typical monitor, you would only be able to see a portion of the photo when displayed at 100% magnification. Most photo editing programs will list the percentage that the image is being scaled.

Cropping out a piece at 100% magnification is usually just done for posting on a web site, since the full-size photo may be too large to post practically.
07-08-2011, 06:20 AM - 1 Like   #93
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
I recently bought em and love it!
Here's a couple of photos I shot with this wonderful lens. It was my first time bringing it out on an outdoor shoot.













07-08-2011, 06:26 AM   #94
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
...brought it out last week to a gig. It's performance was really really disappointing. The flares are unimaginable, to a point where I felt like throwing the lens immediately and use my Pentax SMC lens (which is by far leagues ahead of Tamron in terms of flares).

and my favourite photo from the gig has got to be this multiple exposure.


even in this photo, you can see those horrible flares on the right side. There are photos where the flares are on the person's eye and crotch area, which is, IMO, damn funny. Hhahaha


Last edited by mkvlln; 07-08-2011 at 06:51 AM.
07-08-2011, 06:53 AM   #95
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
Those outdoor photos look really great. Did you use any light modifiers?
07-08-2011, 06:57 AM   #96
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
QuoteOriginally posted by Edgar_in_Indy Quote
Those outdoor photos look really great. Did you use any light modifiers?
yup, used a Metz 50, most of them are off-shoe flash.
07-08-2011, 07:05 AM   #97
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
Do you use some kind of radio trigger for the flash? And do you have any white balance problems with the temperature of the flash being different from the temperature of the daylight?

07-08-2011, 07:17 AM   #98
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
QuoteOriginally posted by Edgar_in_Indy Quote
Do you use some kind of radio trigger for the flash? And do you have any white balance problems with the temperature of the flash being different from the temperature of the daylight?
nope, not that I know of.... And I didn't use radio trigger; I just used optical wireless slave. Either I stretch my left arm or I asked one of the two (they are my friends btw) to hold the flash. Hahaha. So they took turns holding the flash and getting their picture taken.
07-08-2011, 07:39 AM   #99
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
So the built-in flash from the camera is strong enough to trigger the speedlight, even outdoors in sunlight?

And what do you do if you don't want the straight-on flash from the camera effecting your lighting? Do you use a card or something to block it from hitting your subject?
07-08-2011, 07:54 AM   #100
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
QuoteOriginally posted by Edgar_in_Indy Quote
So the built-in flash from the camera is strong enough to trigger the speedlight, even outdoors in sunlight?

And what do you do if you don't want the straight-on flash from the camera effecting your lighting? Do you use a card or something to block it from hitting your subject?
If I remember correctly, the purpose of the pop-up flash is to send a signal to the flashgun, so the strength of the pop-up flash doesn't come into the factor that contribute to the firing of the flashgun (like the IR remote control). However, you must have the flash gun in the line-of-sight of the pop-up flash for the latter to transmit the signal over. I think this is what they call optical flash triggering or something.

I wasn't able to turn off my camera's flash so I set the pop-up flash to the lowest output (-2 EV), so that it wouldn't "blow" my subjects. That way, the pop-up flash was more of a filler than the main flash.

Hope this helps.
07-08-2011, 08:07 AM   #101
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
QuoteOriginally posted by mkvlln Quote
I wasn't able to turn off my camera's flash so I set the pop-up flash to the lowest output (-2 EV), so that it wouldn't "blow" my subjects. That way, the pop-up flash was more of a filler than the main flash.

Hope this helps.
Yes, that does help. I almost never use my built-in flash, so I hadn't ever tried turning it down. I'm now playing with my Sigma EF-500 Super flashgun, but my 2-yoa subject is starting to lose patience. It's definitely something I'll be experimenting more with though.
07-08-2011, 08:22 AM   #102
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
QuoteOriginally posted by mkvlln Quote
...brought it out last week to a gig. It's performance was really really disappointing. The flares are unimaginable, to a point where I felt like throwing the lens immediately and use my Pentax SMC lens (which is by far leagues ahead of Tamron in terms of flares).
I've never noticed any problems with glare, but then again, I've never shot in a dark place with bright lights shining directly into the lens like you were. Just out of curiosity, are you using a filter on the front of your lens? Because if you are, and you find yourself in a similar situation, you may want to try removing the filter and shooting with no additional glass in front of the element. I never use filters on any of my lenses.
07-08-2011, 09:48 AM   #103
Senior Member




Join Date: Dec 2010
Photos: Albums
Posts: 122
QuoteOriginally posted by Edgar_in_Indy Quote
I've never noticed any problems with glare, but then again, I've never shot in a dark place with bright lights shining directly into the lens like you were. Just out of curiosity, are you using a filter on the front of your lens? Because if you are, and you find yourself in a similar situation, you may want to try removing the filter and shooting with no additional glass in front of the element. I never use filters on any of my lenses.
oh yeah I was using a filter. Maybe that's the problem, cause I didn't use filters on my other lenses.
07-08-2011, 09:58 AM   #104
Veteran Member
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,685
Original Poster
QuoteOriginally posted by mkvlln Quote
oh yeah I was using a filter. Maybe that's the problem, cause I didn't use filters on my other lenses.
I know that a lot of people use filters (often just as a safety precaution), but I just never felt comfortable with using a relatively inexpensive piece of glass in front of a lens that costs hundreds of dollars and was designed with a very specific optical formula.
07-08-2011, 12:01 PM   #105
Loyal Site Supporter
Loyal Site Supporter




Join Date: Aug 2009
Location: New England
Photos: Albums
Posts: 706
QuoteOriginally posted by Edgar_in_Indy Quote
I know that a lot of people use filters (often just as a safety precaution), but I just never felt comfortable with using a relatively inexpensive piece of glass in front of a lens that costs hundreds of dollars and was designed with a very specific optical formula.
With a little bit of research and personal testing, it is certainly possible to put a quality filter in front of a lens and shoot with confidence.

There is a tremendous difference between a good filter and a bad filter. Just look at the #1 filter from the lenstip.com UV filters test results (not including the unranked supplement results), the Hoya HMC UV-0, versus the worst, the Tiffen UV. The negative impact of the Tiffen is drastic.
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!
couple, ebay, f/2.8, images, k-mount, lens, pentax lens, photos, pictures, slr lens, tamron, tamron 28-75mm
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tamron 17-50mm f2.8 not as fast (bright) as Tamron 28-75mm f2.8 on Pentax K-x, PICS Edgar_in_Indy Pentax SLR Lens Discussion 38 01-10-2011 04:09 PM
Fun to take pics with a kit lens again (Beware lots of pics) dsport Post Your Photos! 16 11-19-2008 06:56 AM
Sigma 100-300 f/4 w/ Tamron MC7 TC test pics OrenMc Pentax SLR Lens Discussion 11 06-15-2008 10:14 PM
LBA Tamron 70-300 pics C&C welcome gokenin Post Your Photos! 4 01-25-2008 08:30 AM
Sample pics of Tamron 70-300 DI cruiserlan2000 Pentax SLR Lens Discussion 5 03-23-2007 08:36 PM



All times are GMT -7. The time now is 10:12 AM. | See also: NikonForums.com, CanonForums.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