Is this sharp?


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bkkoo78

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Oct 13, 2010
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#1
HI all,

Is this sharp?


20110208_Flower_0001 by BKKOO, on Flickr

This is the 1024 x 683, the 4608 x 3072 is more clear that it is blur.

This pic is shot with

Nikon d3100 + 50mm 1.4G
1/640 secs at f/ 1.6
ISO 100

The focus is the yellow/red center of the flower

** I am already shooting with a tripod on a 2 sec timer

Wrong tool? Wrong setting?

Please advise...

Thanks all in advance.
 

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spree86

Senior Member
Feb 3, 2009
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Bishan
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#2
Looks sharp to me, just that the DOF is too thin at f1.6 therefore some areas are out of focus
 

yc2005

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May 14, 2009
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#4
The red yellow portion looks alright to me. The DOF is too shallow, try sth like f9-f16 and do mirror lockup to further reduce vibration
 

esoeij

Senior Member
Apr 12, 2009
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#5
Looks a bit underexposed to me. Since you were shooting with a tripod, could have tried using a slower shutter speed?
 

Last edited:
Jun 22, 2010
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Singapore
#6
:) It seems like u have focused on the center of the flower, which is white in color, therefore creating an illusion that this flower shot is not very sharp.

Can i recommend u to focus on the reddish patch of the flower instead. That should give u more contrast.

Also as recommended by some, reduce the size of ur aperture so that the focus is not only restricted at a certain part of the flower but the whole flower instead.
 

mitsucolt

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Jul 16, 2009
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#7
did you set to spot focussing and rely on manual? if you wear specs, but did not put them on, you may need to adjust the diopter setting for the viewfinder.

ISO 100-125 is ok.

there r rules of thumbs for shutter speed.

forget the timer, try get a hand held remote instead.

for exposure, the fact rear petal is casting a shadow on the front petal shows that backlight is stronger. you may wanna consider using light bounce. you may also wanna consider spraying some water droplet for added effect.
 

xtunbox

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Jul 5, 2010
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#8
Sometimes i also faced with this problem when shooting flower with my kit lens which i dont think is sharp at all... Maybe u can try droping dwn 2-3 stops to see it helps on the sharpness.
Or get a real marco lens.
 

bkkoo78

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Oct 13, 2010
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#9
Agree. You should try f/2.8
Ok... I will try next time...

The red yellow portion looks alright to me. The DOF is too shallow, try sth like f9-f16 and do mirror lockup to further reduce vibration
would doing a 9 - 16 bring my background into focus too? (my intention is to blow the background out of the sky)

Ooo... is there a way to take the picture while the mirror is lockup?? Do explain if you can..

THanks,


Looks a bit underexposed to me. Since you were shooting with a tripod, could have tried using a slower shutter speed?
I was trying to keep at 1.4 as I wanted to blow the background out of the sky... will try to up the F number and try again...

:) It seems like u have focused on the center of the flower, which is white in color, therefore creating an illusion that this flower shot is not very sharp.

Can i recommend u to focus on the reddish patch of the flower instead. That should give u more contrast.

Also as recommended by some, reduce the size of ur aperture so that the focus is not only restricted at a certain part of the flower but the whole flower instead.
Hmmm... pretty sure its on the yellow red area from viewnx 2 software which shows my focus area. I will up the f next time.

did you set to spot focussing and rely on manual? if you wear specs, but did not put them on, you may need to adjust the diopter setting for the viewfinder.

ISO 100-125 is ok.

there r rules of thumbs for shutter speed.

forget the timer, try get a hand held remote instead.

for exposure, the fact rear petal is casting a shadow on the front petal shows that backlight is stronger. you may wanna consider using light bounce. you may also wanna consider spraying some water droplet for added effect.
Not using spot focusing, was using Matrix... Should I be using spot metering in much situations? Please advice...

Yes Manual setting.

Yes, was wearing my specs.

I thought there is no diff between hand held remote or timer. <--- Am i wrong?
 

Last edited:

bkkoo78

New Member
Oct 13, 2010
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#10
Sometimes i also faced with this problem when shooting flower with my kit lens which i dont think is sharp at all... Maybe u can try droping dwn 2-3 stops to see it helps on the sharpness.
Or get a real marco lens.
I will try on dropping the F-stops and try again..

Is really a must Macro lens for flowers... I dont shoot insects and things small... Please advice.
 

bkkoo78

New Member
Oct 13, 2010
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#11
I up the f-stops, the pictures looks much better..

Thanks all
 

fusionz

New Member
Jan 27, 2008
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Milky Way
#12
Don't think there is MUP function in your D3100 so you could try using the "delay mode on" function. By default the timing is 1sec, this should minimise any vibration.

This setting should be found in your custom setting D*, just remember to turn it off when you are shooting handheld. You can combine it with your timer if you do not have a shutter remote.

Are you using AF or MF to focus?
 

bkkoo78

New Member
Oct 13, 2010
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#13
Don't think there is MUP function in your D3100 so you could try using the "delay mode on" function. By default the timing is 1sec, this should minimise any vibration.

This setting should be found in your custom setting D*, just remember to turn it off when you are shooting handheld. You can combine it with your timer if you do not have a shutter remote.

Are you using AF or MF to focus?
AF

I don't think my camera got this MUP setting, but thanks for the knowledge.
 

ovaltinemilo

Senior Member
Sep 12, 2009
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Sin jia Po lah
#14
next tm try to press down shutter button as soon as af confirm up. Coz it might be the little movement throwing the plane of focus out.
 

wilb87

New Member
Dec 19, 2010
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#15
Get it exposed properly, use a diffused flash on it, it look so dull and uninteresting. Could fine tweak the saturation as well.
 

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