Second stack attempt.

Images taken in a controlled environment or with a posed subject. All subject types.

Moderators: Pau, rjlittlefield, ChrisR, Chris S.

Arwin
Posts: 18
Joined: Thu Aug 13, 2015 3:37 am
Location: Holland

Second stack attempt.

Post by Arwin »

Hello,

Here's my second attempt to make a stack photo.

About 110 pictures stacked in Zerene.

I used a yongnuo ring flash with special diffuser.

180mm tamron lens with a Canon 50 mm lens reversed in front.



Image

Greetings Arwin

Macrero
Posts: 888
Joined: Thu Sep 01, 2011 8:17 am
Location: Valladolid , Spain

Post by Macrero »

Hi Arwin, definitely something has gone wrong with this stack. What your rig looks like? You have to find the cause of that blur, which is not normal. Keep trying! Surely your next stack will look better. :wink:

Regards!
https://500px.com/macrero - Amateurs worry about equipment, Pros worry about money, Masters worry about Light

ChrisR
Site Admin
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Joined: Sat Mar 14, 2009 3:58 am
Location: Near London, UK

Post by ChrisR »

Hi Arwin
What apertures do you have set on the two lenses?
What method are you using to focus?
Hopefully there are opportunities for improvement ;)

Arwin
Posts: 18
Joined: Thu Aug 13, 2015 3:37 am
Location: Holland

Post by Arwin »

Hello,

I think the front part thats blurred is the part I dident make sharp images. I started with my 1st sharp point behind the body part.

My 50 mm is wide open and the 180 mm is on F.8.0

Greetings Arwin

ChrisR
Site Admin
Posts: 8575
Joined: Sat Mar 14, 2009 3:58 am
Location: Near London, UK

Post by ChrisR »

Looking at Rik's ray-drawing, you'll see that you might do better to fully open the rear lens..


FAQ: Stopping down a lens Combo

My own experience of combos is that they vary quite a lot. Edge peroformance is poor with some. I haven't tried a pairing for years other than for a demo, though.

lauriek
Posts: 2402
Joined: Sun Nov 25, 2007 6:57 am
Location: South East UK
Contact:

Post by lauriek »

You should definitely try that, open up the telephoto rear lens and stop down the reversed 50, f5.6 or even a whisker higher f-stop is probably a good starting point for this sort of magnification. For more magnification open up the front lens even more, although be aware if it's a standard 50 it probably won't be very sharp when wide open in this kind of configuration

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