D7100 and 10 24 - long exposure

Started Apr 29, 2013 | Discussions
Nepentanova
Forum MemberPosts: 67
Like?
D7100 and 10 24 - long exposure
Apr 29, 2013

Dunraven Bay, Wales. D7100 92s, iso 100, 10mm, f22. 2 stop nd grad

Nikon D7100
If you believe there are incorrect tags, please send us this post using our feedback form.
RudyPohl
Senior MemberPosts: 2,919
Like?
Re: D7100 and 10 24 - long exposure
In reply to Nepentanova, Apr 29, 2013

Hi Nepentanova:

I love this shot, it's simply breathtaking!

Thanks,

Rudy

Reply   Reply with quote   Complain
BlueJakester
Senior MemberPosts: 1,705Gear list
Like?
Re: D7100 and 10 24 - long exposure
In reply to Nepentanova, Apr 29, 2013

Fantastic! Very mystical quality to it, for me anyway

 BlueJakester's gear list:BlueJakester's gear list
Fujifilm X-E1 Nikon D5200 Nikon AF-S DX Nikkor 35mm f/1.8G Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Sigma 10-20mm F4-5.6 EX DC HSM +2 more
Reply   Reply with quote   Complain
engbert
Senior MemberPosts: 2,325
Like?
Re: D7100 and 10 24 - long exposure
In reply to BlueJakester, Apr 29, 2013

Thank you for the interesting picture.  I  do not have any extra wide angle lenses, so please would you explain the 92 seconds at f22, iso 100?

At 10mm on this camera, everything from about 3 feet to infinity would be in focus at f4.  At f4, as far as I can tell from an Android App, "Photo Tools",  you could have used 1/30th second.  At iso 200 1/60th, very roughly.

This would have been much easier, hand held.

How would the result have been different?

Blurring out any movement on the water would be a possibility - was this the main intention?

-- hide signature --

www.pbase.com/bertramm
pbase & dpreview supporter

Reply   Reply with quote   Complain
blue_cheese
Senior MemberPosts: 1,400
Like?
Very nice
In reply to Nepentanova, Apr 29, 2013

I like that picture a lot...

Reply   Reply with quote   Complain
trespassing
Regular MemberPosts: 166
Like?
Re: D7100 and 10 24 - long exposure
In reply to Nepentanova, Apr 29, 2013

Nepentanova wrote:

Dunraven Bay, Wales. D7100 92s, iso 100, 10mm, f22. 2 stop nd grad

Fantastic shot.  Do you mind me asking which ND Grads you used?

-- hide signature --

Matt

Reply   Reply with quote   Complain
mosswings
Veteran MemberPosts: 5,721Gear list
Like?
Re: D7100 and 10 24 - long exposure
In reply to engbert, Apr 29, 2013

engbert wrote:

Thank you for the interesting picture.  I  do not have any extra wide angle lenses, so please would you explain the 92 seconds at f22, iso 100?

At 10mm on this camera, everything from about 3 feet to infinity would be in focus at f4.  At f4, as far as I can tell from an Android App, "Photo Tools",  you could have used 1/30th second.  At iso 200 1/60th, very roughly.

This would have been much easier, hand held.

How would the result have been different?

Blurring out any movement on the water would be a possibility - was this the main intention?

-- hide signature --

www.pbase.com/bertramm
pbase & dpreview supporter

Convert the given exposure to an effective EV number and you'll have your answer.

ISO 100:f4:1/30 is EV 9, or skylight just after sunset. Barely handheld if you've got a very steady hand.

ISO 100:f22:92 with a 2 stop ND filter is EV 2-3 at the sensor, two stops less light than a candlelit scene - deep into tripod territory, with the absolute light levels at the scene a lot darker than it appears in the image.

The image was captured with the very last rays of the already-set sun, with the foreground light already strongly dusky blue. This creates a strong contrast between the red of the sky and the blue of the shore and clouds. A 2 stop ND filter was chosen to balance the skylight and ground light and to slow the shutter speed down so as to blur away the detail in the surf, turning it misty and cloudlike.  The lack of wind at low and high levels kept the clouds roughly in place, lending a surreal quality to the image.  A tripod was absolutely essential to keep the foreground and midground details free of motion blur.  Had the photographer a 5 or 6 stop ND filter, he could have used a smaller aperture which would have avoided some diffraction limiting in the foreground detail but would have minimized depth of field.

Attempting to shoot this scene handheld as you propose would not only have resulted in handholding motion blur - especially with such a high resolution camera - but would not have produced the ethereal effect you see.

 mosswings's gear list:mosswings's gear list
Olympus XZ-1 Nikon D90 Nikon D7100 Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR +1 more
Reply   Reply with quote   Complain
Nepentanova
Forum MemberPosts: 67
Like?
Re: D7100 and 10 24 - long exposure
In reply to mosswings, Apr 29, 2013

mosswings wrote:

engbert wrote:

Thank you for the interesting picture.  I  do not have any extra wide angle lenses, so please would you explain the 92 seconds at f22, iso 100?

At 10mm on this camera, everything from about 3 feet to infinity would be in focus at f4.  At f4, as far as I can tell from an Android App, "Photo Tools",  you could have used 1/30th second.  At iso 200 1/60th, very roughly.

This would have been much easier, hand held.

How would the result have been different?

Blurring out any movement on the water would be a possibility - was this the main intention?

-- hide signature --

www.pbase.com/bertramm
pbase & dpreview supporter

Convert the given exposure to an effective EV number and you'll have your answer.

ISO 100:f4:1/30 is EV 9, or skylight just after sunset. Barely handheld if you've got a very steady hand.

ISO 100:f22:92 with a 2 stop ND filter is EV 2-3 at the sensor, two stops less light than a candlelit scene - deep into tripod territory, with the absolute light levels at the scene a lot darker than it appears in the image.

The image was captured with the very last rays of the already-set sun, with the foreground light already strongly dusky blue. This creates a strong contrast between the red of the sky and the blue of the shore and clouds. A 2 stop ND filter was chosen to balance the skylight and ground light and to slow the shutter speed down so as to blur away the detail in the surf, turning it misty and cloudlike.  The lack of wind at low and high levels kept the clouds roughly in place, lending a surreal quality to the image.  A tripod was absolutely essential to keep the foreground and midground details free of motion blur.  Had the photographer a 5 or 6 stop ND filter, he could have used a smaller aperture which would have avoided some diffraction limiting in the foreground detail but would have minimized depth of field.

Attempting to shoot this scene handheld as you propose would not only have resulted in handholding motion blur - especially with such a high resolution camera - but would not have produced the ethereal effect you see.

Spot on!

It was getting quite dark when that picture was taken, over 30 minutes after sunset. The reason for the small aperture and long exposure was not for the waves, but for the cloud movement. I have to say i was thankful for the dr of the d7100 as the exposure time (an educated guess!) came close to blowing the highlights in the sky, particularly the red channel.

Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum MMy threads