Nikon D800E ,Mitutoyo M Plan APO 5x NA 0.14 200/0
350 stack (40% oversampled on this one)
not sure what this is (Assassin Bugs (Family Reduviidae))?
Moderators: rjlittlefield, ChrisR, Chris S., Pau
-
- Posts: 277
- Joined: Tue Jul 28, 2009 6:02 pm
- Contact:
not sure what this is (Assassin Bugs (Family Reduviidae))?
Last edited by bobfriedman on Tue May 26, 2015 6:41 am, edited 1 time in total.
- rjlittlefield
- Site Admin
- Posts: 23625
- Joined: Tue Aug 01, 2006 8:34 am
- Location: Richland, Washington State, USA
- Contact:
-
- Posts: 277
- Joined: Tue Jul 28, 2009 6:02 pm
- Contact:
this bug was quite big about 30mm long... the antennae added additional mm's
40% oversampled means.. that i forgot to reduce the number of steps so i don't know exactly but you can calculate it should have been around 250.. i have begun doubling the Mitutoyo DoF 0.014mm for this objective as you pointed out. turns out that antenna at the top added another 2-3mm.
40% oversampled means.. that i forgot to reduce the number of steps so i don't know exactly but you can calculate it should have been around 250.. i have begun doubling the Mitutoyo DoF 0.014mm for this objective as you pointed out. turns out that antenna at the top added another 2-3mm.
-
- Posts: 277
- Joined: Tue Jul 28, 2009 6:02 pm
- Contact:
-
- Posts: 277
- Joined: Tue Jul 28, 2009 6:02 pm
- Contact:
-
- Posts: 277
- Joined: Tue Jul 28, 2009 6:02 pm
- Contact:
- rjlittlefield
- Site Admin
- Posts: 23625
- Joined: Tue Aug 01, 2006 8:34 am
- Location: Richland, Washington State, USA
- Contact:
Thanks for the alternate view of the white spot. Yes, that looks like some sort of parasite, not a feature of the bug itself. On a caterpillar, my first thought would be tachinid fly egg. On a bug like this, I have no idea.
Thanks also for clarification about the step size. So, if I have done the calculations correctly, your step size was actually (250*0.028)/350 = 0.020 mm = 20 microns, same as what Charlie uses.
--Rik
Thanks also for clarification about the step size. So, if I have done the calculations correctly, your step size was actually (250*0.028)/350 = 0.020 mm = 20 microns, same as what Charlie uses.
--Rik