Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
04-13-2008, 07:48 PM   #1
Veteran Member
heatherslightbox's Avatar

Join Date: Nov 2007
Location: Gainesville, FL
Photos: Gallery
Posts: 2,595
Insect and other small creature closeups

I was thinking of getting the DFA100 macro to cover these subjects, but someone suggested that a closeup lens in the 200-300 range would be better. Just about all the lenses I've looked at have a minimum focusing distance in the neighborhood of 36", which I wouldn't consider closeup, in comparison to a dedicated macro.

Would something like a 70-300 or the 55-300 work for this? Do you have any other suggestions (remember I'm on a budget here).

Heather (who sees this as another excuse to justify getting the DA35)

04-13-2008, 08:03 PM   #2
Veteran Member
aegisphan's Avatar

Join Date: Nov 2007
Location: New Mexico
Posts: 815
If they're small insects, these close-focused lenses wouldn't do the job. You will get a better magnification with your DFA 100 macro. The DA 35 is definitely not up for the job, except for stationary bug (a dazed bee ). Macrophotography depends on skill, patience, and luck. A 200 macro would make the job easier, but it's not impossible with a shorter focal. I have shot several bee shots with my Voigt 125 (not much further than the 100). With practice, you can somewhat predict when and where it's going to move, and snap the shot there.
04-13-2008, 08:07 PM   #3
Veteran Member
Buddha Jones's Avatar

Join Date: Sep 2006
Location: Charlotte, NC
Photos: Gallery
Posts: 2,591
Generally 100mm is fine for things that are easy to get too and dont more around like flowers. If you wanted more reach and still be a 1:1 macro you are going to be hunting for the FA*200 f/4 Macro, and good luck with that.

The other lenses will bet you 1:3 at best and there will be a significant loss in IQ would be my guess. The Tamron 70-300mm is OK for macro but I would leave it on the 180mm, don't approach the 300mm end unless conditions are perfect.
04-14-2008, 05:17 AM   #4
Veteran Member
roentarre's Avatar

Join Date: Oct 2006
Location: Melbourne, Australia
Posts: 11,794
A dedicated macro lens is always preferred in order to achieve 1:1 macro. It can also be used as a medium telephoto lens for general purpose photography.

My main concern with DFA 100mm macro is actually its propensity to create blown highlights in bokeh. In my experience, this is a particularly common problem that often creates distracting weird highlight bokeh where it might just ruin the overall image.

To me, sharpness is not an issue but it seems to bother quite a few others. The centre sharpness only improves when aperture goes to f4.0 and above.

Typically this lens is great with colour and contrast. Overall image can be really colourful when you use aperture around f4. Ironically it can be too sharp for protraits.

However, this macro on k20d is actually having less problems with blown highlights in bokeh. More usable. The autofocus does hunt a lot more than any other autofocus macro I have tried. So mid-flight macro is probably quite difficult with this lens.

I do not have positive experience with Tamron 70-300 or sigma 24-70/2.8 macro; even though people manage to produce excellant images, I think it is more about the right lighting and skill of the photographers rather than the superiority of these lenses. Part of photographers' hobby is to evaluate trivial differences of lenses. So this is my say on this issue.


  • 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!
k-mount, macro, pentax lens, slr lens
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
Nature Spot the Creature goddo31 Post Your Photos! 9 11-30-2009 04:21 AM
Macro more closeups jfirneno Post Your Photos! 3 10-21-2009 04:36 AM
Nature Strange Amazonian forest creature! Douglas_of_Sweden Post Your Photos! 12 10-08-2009 10:05 AM
What's this creature? Kguru General Talk 14 01-08-2009 02:59 PM
Seven Closeups sjl7678 Post Your Photos! 1 11-03-2007 10:42 PM

All times are GMT -7. The time now is 08:15 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]