Abstract 2:1 macro of a caterpillar's spikes

2:1 macro of a caterpillar's spikes · 01:27 AM

....

**Rense** · 05-08-2010, 01:29 AM

Yikes, spikes!

Great shot again! Almost abstract, but after the last one you posted, I know what it is

.
Take care that the highlights don't become too prominent!!

BTW: that Sigma coupled with a 50mm reversed: which 50mm? Do they have the same filter tread size? If not, I guess the 50mm is smaller? How does that influence the light and FoV?

yeatzee · 05-08-2010, 01:39 AM

Originally posted by Rense

Yikes, spikes!

Great shot again! Almost abstract, but after the last one you posted, I know what it is

.
Take care that the highlights don't become too prominent!!

BTW: that Sigma coupled with a 50mm reversed: which 50mm? Do they have the same filter tread size? If not, I guess the 50mm is smaller? How does that influence the light and FoV?

Thanks rense. Its difficult when water droplets are part of the equation, considering how reflective they are. I plan on attemping your DIY flash idea with my speed light somehow added to the mix tomorrow. Wish me luck!

I use my M 50mm F/1.7 as a reversed lens. No the M 50mm is 49mm I believe and the sigma is 58mm (if memory serves me right) so I just place the 50mm centered as best as I can and tape it up.

Could you expand on your last question?

**Rense** · 05-08-2010, 01:50 AM

Thanks! If you put a smaller lens in front of a larger one, like you do, you obstruct the light coming in, it seems. Or not? And if you put a too long, or too narrow hood on a lens, you'll get vignetting. How about a smaller lens in front of a larger one???

yeatzee · 05-08-2010, 11:55 AM

Originally posted by Rense

Thanks! If you put a smaller lens in front of a larger one, like you do, you obstruct the light coming in, it seems. Or not? And if you put a too long, or too narrow hood on a lens, you'll get vignetting. How about a smaller lens in front of a larger one???

TBH Im not sure how much light I lose with it on, not a noticeable amount but than again I've never tried this techique with natural light.

Vigetting only occurs when I have the 50mm stopped down to F/3.5 or more...

yeatzee · 05-08-2010, 12:41 PM

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05-08-2010, 01:29 AM	#2
Rense Site Supporter Join Date: Dec 2008 Location: Zetten - The Netherlands Photos: Gallery \| Albums Posts: 9,050	Yikes, spikes! Great shot again! Almost abstract, but after the last one you posted, I know what it is . Take care that the highlights don't become too prominent!! BTW: that Sigma coupled with a 50mm reversed: which 50mm? Do they have the same filter tread size? If not, I guess the 50mm is smaller? How does that influence the light and FoV?

05-08-2010, 01:39 AM	#3
yeatzee Veteran Member Join Date: Feb 2009 Location: Temecula Photos: Gallery \| Albums Posts: 3,675 Original Poster	Originally posted by Rense Yikes, spikes! Great shot again! Almost abstract, but after the last one you posted, I know what it is . Take care that the highlights don't become too prominent!! BTW: that Sigma coupled with a 50mm reversed: which 50mm? Do they have the same filter tread size? If not, I guess the 50mm is smaller? How does that influence the light and FoV? Thanks rense. Its difficult when water droplets are part of the equation, considering how reflective they are. I plan on attemping your DIY flash idea with my speed light somehow added to the mix tomorrow. Wish me luck! I use my M 50mm F/1.7 as a reversed lens. No the M 50mm is 49mm I believe and the sigma is 58mm (if memory serves me right) so I just place the 50mm centered as best as I can and tape it up. Could you expand on your last question?

05-08-2010, 01:50 AM	#4
Rense Site Supporter Join Date: Dec 2008 Location: Zetten - The Netherlands Photos: Gallery \| Albums Posts: 9,050	Thanks! If you put a smaller lens in front of a larger one, like you do, you obstruct the light coming in, it seems. Or not? And if you put a too long, or too narrow hood on a lens, you'll get vignetting. How about a smaller lens in front of a larger one???

05-08-2010, 11:55 AM	#5
yeatzee Veteran Member Join Date: Feb 2009 Location: Temecula Photos: Gallery \| Albums Posts: 3,675 Original Poster	Originally posted by Rense Thanks! If you put a smaller lens in front of a larger one, like you do, you obstruct the light coming in, it seems. Or not? And if you put a too long, or too narrow hood on a lens, you'll get vignetting. How about a smaller lens in front of a larger one??? TBH Im not sure how much light I lose with it on, not a noticeable amount but than again I've never tried this techique with natural light. Vigetting only occurs when I have the 50mm stopped down to F/3.5 or more...

05-08-2010, 12:41 PM	#6
yeatzee Veteran Member Join Date: Feb 2009 Location: Temecula Photos: Gallery \| Albums Posts: 3,675 Original Poster	and another