Post your best Macro shots

[EdN]

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The F/9 would be for depth of field purposes but it lets in light like an F/5.6 for increased shutter speed.

Yes, you would get a shutter speed of f/5.6 but the noise would be the same as f/9 on a full-frame or f/5.6 noise on a 1.6. The noise would be about the same.
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John


Are you sure about that? The F/9 applies for depth of field equivalent to full frame is an optical measure. Noise is a function of signal processing of the light picked up by the sensor. I don't understand how differing depths of field in a lens affect the signal processing of the light falling on the sensor to affect noise in shots with good exposures.

[deltasun]

Thai red pepper flakes...

[PaulM]

Cicada in New Zealand summertime


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Canon D60, original 100mm macro (not USM), f/5, ISO 400, manual focus and some tripod shuffling, sun lit.


Love those August fly shots BTW.


Paul.

[neuroanatomist]

The F/9 applies for depth of field equivalent to full frame is an optical measure. Noise is a function of signal processing of the light picked up by the sensor. I don't understand how differing depths of field in a lens affect the signal processing of the light falling on the sensor to affect noise in shots with good exposures.

It's not the DoF that affects noise, but rather it's the relationship between lens iris diameter and sensor size that affects noise and diffraction (as well as DoF). The f-number is a lens property only - the ratio of focal length to iris diameter - it'sindependent of sensor size. So, if you set f/5.6 on a particular lens on 1.6x FOCVF body and a FF body, the iris diameter is going to be the same, and thus the light per unit area leaving the back of the lens will be the same. As you stated, Ed, "Noise is a function of signal processing of the light picked up by the sensor." Because aFF sensorhas a larger area, itwill capture <span>more of the light exiting the back of the lens. More total light means less noise. So, f/9 on FF will have similar noise as f/5.6 on a 1.6x crop, and the corollary to that is for the same f-number, the crop sensor will have more noise and more diffraction. In a previous post, Daniel explained this quite well.

[Jayson]

And through the window

[ddt0725]

Great shots, Jayson! [Y]

[MrGreenBug]

Loving all the macro photos! [Y] My share..


XS + kit lens @ 55mm, f/8, 1/200sec, ISO 400, FEC -2, Hand-held





Thank you for viewing!

[Jayson]

Nice Cat Mr. Green Bug. Thanks for the comment on the Grasshopper Denise. Lovely Jumper you have captured! They have such a personality when you catch them. I love how they pose for the camera.[]


I hunted mushrooms with my kids today. I captured a few before they were all smashed!








These were actually take with a 70-200 f4 IS, Kenko 1.4tc.

[MrGreenBug]

Nice shots of that butterfly! I really would love to get some chance to get myself shots like those.

[neuroanatomist]

Love the monarch shots, Jayson!