Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
06-08-2016, 08:23 AM   #16
D1N0's Avatar

Join Date: May 2012
Location: ---
Photos: Gallery
Posts: 4,169
This if the current offering:
Macro Lenses / K-mount Lenses / Lenses / Products | RICOH IMAGING

The 35 will work on full frame, the 50 is probably the sharpest. The 100 is pretty cheaply built but excellent.

There is legacy glass from Tamron 90mm F2.8 in K-mount and from Sigma 70/105/180mm F2.8 in K-mount. They don't do new K-mount anymore. Maybe when enough demand comes from K-1 users. Maybe we can start kickstarters in co÷peration with Sigma.

06-08-2016, 02:18 PM   #17
Edgar_in_Indy's Avatar

Join Date: May 2010
Location: Indiana, USA
Photos: Gallery
Posts: 2,632
QuoteOriginally posted by Adam Quote
The Sigma and Pentax FA* 85mm are also quite sharp, but not good for close-ups.
I can vouch for the Sigma 85mm in terms of sharpness and overall image quality. Very impressive in those areas.

It'll get plenty close enough for people pictures, but for small objects it's not a great choice since it has to be almost a meter away to focus...maybe just a bit less. The AF is also not the fastest, so it's not the best choice for erratic moving subjects.
06-08-2016, 05:43 PM   #18
Site Supporter

Join Date: Jan 2016
Location: Fulton County, Illinois
Posts: 1,577
What magnification range do you need? A lot of "close-focusing" lenses and some called "macro" can accomplish ratios between 1:6 to 1:4, and for a lot of subjects that would be fine. But if you want the lens to give your true macro magnification -- 1:1 or greater -- that will reduce the number of lenses you can consider. True macro lenses are not necessarily the fastest. And with very slim DOF at high magnification, one might want to stop down the lens a little if light permits. In your project, are you limited to available light or low light?

  • 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!
dslr, full frame, full-frame, k-1, k1, lenses, lenses with pentax, pentax, pentax k-1
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
wide open soft vs F4 sharp slip Pentax SLR Lens Discussion 12 05-17-2016 05:10 AM
How sharp is D-FA* 70-200 wide open? vitc Pentax SLR Lens Discussion 11 04-30-2016 05:42 AM
Lenses that are sharp wide open? kbrede Pentax SLR Lens Discussion 55 03-30-2011 05:39 AM
M42 Ultra wide primes that are sharp and contrasty imadethis Pentax SLR Lens Discussion 4 09-10-2007 06:52 PM

All times are GMT -7. The time now is 10:51 PM. | 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]