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Sep 9, 2015 12:08:49   #
amfoto1 Loc: San Jose, Calif. USA
 
joer wrote:
....

I decided on Nikon 1 and FT 1 adaptor. Ordered a used V2 and adaptor. It will multiply by a factor of 2.7. A 100mm equates to 270mm, 300mm to 810mm and so on. There is no light loss. f4 remains f4 but the DOF increase substantially. Couldn't be better for telephoto.

Now I'm a big advocate of large MP sensors for the ability to make huge crops. I have no illusions about the IQ of my new rig and have no expectation of matching my 810 even when cropped severely.

However there has to be a cross over point where the complete 1" sensor is better that the cropped FF image from the larger sensor, using the same lens....
.... br br I decided on Nikon 1 and FT 1 adaptor.... (show quote)



All good...

...except that when you increase effective focal length and keep the aperture the same size you will most assuredly find that depth of field DECREASES significantly. The plane of apparent, sharp focus will be a lot shallower. It certainly won't increase.

On another forum we did a careful test a couple years ago, comparing a cropped down image from a 21MP full frame camera, trimmed to match the framing of a shot of the same subject with an 18MP APS-C sensor size camera. The image quality from the smaller sensor was significantly better, in spite of the fact that the small sensor camera model is known to have a strong anti-alias filter and the full frame model has a good reputation for capturing gobs of fine detail.

In other words, for telephoto work, the smaller sensor camera was the clear winner.

This was because, while at first glance that amount of cropping doesn't appear to be a lot, the 21MP full frame image was actually being reduced to an effective 8MP... far from a modest amount of loss!

You'd have to calculate the areas and pixel site densities of the specific sensors you're comparing. But aside from the most extreme examples, it was obvious to me that for telephoto work a smaller sensor camera can be preferable, giving some "free additional magnification". The fact that those pixel sites are smaller and more crowded partially offsets the advantage, but it's still a positive.

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Sep 9, 2015 12:09:53   #
jackpi Loc: Southwest Ohio
 
joer wrote:
I enjoy shooting anything with a camera but mostly birds. I take the lazy approach and make them come to me.

The saying that birders can never have enough reach is an understatement.

The big glass is much too expensive and heavy for me although I had a 500mm P f4 several years ago. The manual focus made me miss a lot of shots as birds are very active and my reflexes keep getting slower it seems. When I got it right it was awesome.

Several members here gave me the idea to take advantage of sensor crop factors by using lens adaptors for my existing lenses.

I decided on Nikon 1 and FT 1 adaptor. Ordered a used V2 and adaptor. It will multiply by a factor of 2.7. A 100mm equates to 270mm, 300mm to 810mm and so on. There is no light loss. f4 remains f4 but the DOF increase substantially. Couldn't be better for telephoto.

Now I'm a big advocate of large MP sensors for the ability to make huge crops. I have no illusions about the IQ of my new rig and have no expectation of matching my 810 even when cropped severely.

However there has to be a cross over point where the complete 1" sensor is better that the cropped FF image from the larger sensor, using the same lens.

The new rig should arrive by the end of the week. I feel like a kid at Christmas time. Nothing more exciting than delving into new territory.
I enjoy shooting anything with a camera but mostly... (show quote)

I've been thinking about getting a Nikon 1. Check out what Thomas Stirr does with his: [urrl]http://tomstirrphotography.com[/url].
Absolutely amazing!

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Sep 9, 2015 14:50:24   #
wthomson Loc: Tempe, Arizona
 
joer wrote:
I enjoy shooting anything with a camera but mostly birds. I take the lazy approach and make them come to me.

The saying that birders can never have enough reach is an understatement.

The big glass is much too expensive and heavy for me although I had a 500mm P f4 several years ago. The manual focus made me miss a lot of shots as birds are very active and my reflexes keep getting slower it seems. When I got it right it was awesome.

Several members here gave me the idea to take advantage of sensor crop factors by using lens adaptors for my existing lenses.

I decided on Nikon 1 and FT 1 adaptor. Ordered a used V2 and adaptor. It will multiply by a factor of 2.7. A 100mm equates to 270mm, 300mm to 810mm and so on. There is no light loss. f4 remains f4 but the DOF increase substantially. Couldn't be better for telephoto.

Now I'm a big advocate of large MP sensors for the ability to make huge crops. I have no illusions about the IQ of my new rig and have no expectation of matching my 810 even when cropped severely.

However there has to be a cross over point where the complete 1" sensor is better that the cropped FF image from the larger sensor, using the same lens.

The new rig should arrive by the end of the week. I feel like a kid at Christmas time. Nothing more exciting than delving into new territory.
I enjoy shooting anything with a camera but mostly... (show quote)



Plus, you get 20 frames per second. Just started experimenting with a similar rig.

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Sep 9, 2015 15:17:01   #
wthomson Loc: Tempe, Arizona
 
Jerry Green wrote:
I purchased the FT1 adapter when it first came out and created a gallery of photos with it on the Nikon V1. Currently I am using the NikonV3.

Gallery @ http://gofish.smugmug.com/Other/Nikon1-V1-FT1/

Click on the gray circle with an i to the lower right of the large image to see which lens was used. Included is also a photo using it on a Nikon Fieldscope.


The FT1 works well with the lightweight 55-300 kit lens often included in DX packages (and therefore often available on eBay). It gives an FX equivalence of 148.5-810mm. The Nikon website gives a list of FT1 compatible lenses for which autofocus, etc. will work, but virtually any Nikon lens can be used with the FT1 using manual focus.

You might also consider a viewfinder hood (http://www.amazon.com/gp/product/B008MIKXZO?ref_=cm_rdp_product#customerReviews) for use in bright sun. I gave this particular item a negative review on Amazon because they sent me an obviously used and damaged copy, but the design is quite good.

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Sep 9, 2015 15:50:59   #
llamb Loc: Northeast Ohio
 
Flyextreme wrote:
How much of that 2000mm is optical and how much of it is digital?


Lens Zoom 83 x Optical

Digital Zoom Up to 4x (angle of view equivalent to that of approx.
8,000mm lens in 35mm [135] format)

This camera is not best camera, doesn't take the best pictures, and is not intended for everyone, especially purists. It is a pretty amazing piece of hardware/software that is an absolute ball with which to spend time zooming and clicking away. For wildlife and fowl it is truly a wonderful tool. I like mine because it fulfills my wants and needs.

~Lee

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Sep 9, 2015 17:09:41   #
wthomson Loc: Tempe, Arizona
 
Duplicate Post....

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Sep 9, 2015 17:11:52   #
wthomson Loc: Tempe, Arizona
 
kymarto wrote:
I think you will see that point when the smaller sensor's pixel density exceeds that of the cropped portion of that of your FF sensor by a fair margin. The only real downside should be much poorer low light response.


But you can handhold much easier than a comparable FX system, which means you can use slower speeds (thus more light). See Thomas Stirr website for more details.

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Sep 9, 2015 18:24:35   #
imagemeister Loc: mid east Florida
 
wthomson wrote:
But you can handhold much easier than a comparable FX system, which means you can use slower speeds (thus more light). See Thomas Stirr website for more details.


This is very questionable ........much easier? - in the REAL world, maybe slightly easier- with PERFECT technique on a STATIC subject ....

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Sep 9, 2015 22:47:37   #
1Mo-Kan Loc: Phoenix, originally Kansas City
 
I have a V2 and really like it. Thomas Stirr's images are amazing.

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Sep 10, 2015 09:01:01   #
wthomson Loc: Tempe, Arizona
 
imagemeister wrote:
This is very questionable ........much easier? - in the REAL world, maybe slightly easier- with PERFECT technique on a STATIC subject ....


It depends on how you hold it, of course. I either brace against something or use the sunshield (above) as a viewfinder that I can hold against my face for further stability (easier to do than describe!).

See Stirr's website for further experimental data--pretty convincing.

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