To All:
I really have to let you know it is a great feeling to have this forum as a resource. I really hit a brick wall up to this point on options for 180mm, but now I feel I am on my way to success. Going with a Pentax system had a lot to do with this forum. When I was researching the K20d back in very early 2008, I often got Google hits which took me to this forum. As I read them, I was astounded at the depth of knowledge residing here. I was looking forward to having this as a resource and now I do. I can not thank you all enough.
Quote: kthung
I can't weigh in on the performance of either but I know that only the Sigma is available in Pentax mount, the Tammy isn’t.
Thanks Kthung--it is good to get this confirmed, I’ll count this lens out.
Quote: thePiRaTE!! While not technically a macro, the Voigtlander Lanthar 180/4 is a close focus lens in a very small package and is very sharp. I quite enjoy it as a companion to its 125/2.5 Lanthar macro brother.
I did not know this was an option--thank you! I have not shot with a Voigtlander, but have read lots of good stuff about them.
You basically have 5 choices within that focal range, 2 in AF and 3 in manual focus. All but the first one are out of production.
Quote: Blue: 1. The Sigma 180mm f3.5 EX DG
2. The FA* 200mm macro
3. The A* 200mm Macro
4. MF Sigma 180mm f5.6 (somewhat hard to find)
5. Tamron 52B or 52BB 90mm macro plus the matched 2x converter that will get it to 180mm and 1:1 macro
Wow, this is great--I really did not know what my choices were limited to. Mucho appreciate!
Quote: soccerjoe5 The Sigma is one of the sharpest lenses I've tried. One fantastic lens, awesome for shooting critters.
Google up reviews on it, it's got some really high reviews on the net.
You can bet I'll be right on Google after I finish this post--it really helps to get a thumbs up on this lens. Since it is still in production, it looks like my frontrunner.
Quote: Marcusyoung: I have the A200 macro f4. I luv its sharpness and bokeh, offering better working distance compares to other macros lens of 100mmm range.
This is my most used macro lens
Marcus, that has to be the coolest looking fly I have ever seen--looks almost like a rainbow incarnated in a fly--truly cool--thanks. It is impressively sharp and will at least have me investigating the A200. Thanks!