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wildlightphoto

Anyone using a 500mm lens?

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It should work very well. The usual glitch with legacy

glass is the angle of projection to the format corners

does not match the microlenses covering the pixels.

With a long lens everything is coming thru "head-on"  

as nearly parallel rays, virtually no angle at all. 

 

The other demon, the central dot reflection of the iris

as reflected back by the sensor, is exacerbated by

lenses that put a convex rear element fairly close to

the sensor ... again the opposite of your situation. 

  

I've had good results with a 350mm on a Nex body

[which scales up to about 500mm for an A7M2] using  

double digit shutter speeds but bracing the lens barrel  

against a soft object [no tripod]. Since that works very

well, the IBIS in the A7M2 should be quite adequate.

  

It's just a lens and it's just a camera. Peeps have been

attaching one to other for generations and never had

an internet by which to ask the whole world if it's gonna

be OK. Just do it !

  

`

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My short experience with my Nikkor 70-300 f4-5.6 with Metabones adapter tells me the A7ii it should work well with longer legacy lenses, provided you're shooting wide open or one stop down. The IBIS works very well, but at smaller apertures the focus peaking is less effective. 

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Planning on using a A7... with 500mm as well, but did not try it extensively yet (was stuck with much work lately).

My configuration is a A7s with a Sigma 500mm f4.5 (first version, Nikon fit), the A7s has no IBIS, but no a lot of issues with the corners (big pixels) and the goal is more to use it with high ISO (e.g. 12800) and high shutter speeds (1/2500 or faster) or in twilight. It is part of the reason why I bought the A7s.

 

From what I remember this was through a window with several TCs and without a proper tripod support:

 

20150215-birds%2Bfamily%2Bquarrel.jpg

 

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Example, at under 5 ft distance ,,,,

 

OK, so it doesn't tell much about IQ in the corners, etc,

but hey, there's no DOF at 500mm, and these lenses

are not typically used as flat field copy lenses so WTH ! 

 

The subject field here is a few inches wide. The bokeh

is peculiar cuz it's a reflector telescope optic. I like it !

And it's shot by window light, hand held, at a high ISO,

with no image stabilization. Crude but effective. 

  

EDIT: I have no clue as to why the forum software has

cropped this image so crazy, but it still serves purpose.

If you click on it, you can see the whole thing. 

post-679-0-98388400-1432517712_thumb.jpg

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I use a Minolta f8 AF Reflex 500mm. It the only mirror AF len s(same as the later Sony version) and its the only lens that will af at f8. i use it on A7 with a LA-EA4 adapter. it ficuses relatively fast, but uses only 1 central focus point. It is short (14cm from adapter front) and light (692g) and is easy to use handheld, though I usually use a monopod or tripod. its size makes it easy to take on a trip. I bought it cheap used ( almost unused, mint condition!) so look out for it! i love mine!

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I use the Tamron 500mm F8 mirror lens. Easy to focus manually, but will need a tripod. short (122mm including the adapter), lightweight (655 gr.) and said to be one of the better mirror lenses.

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I use the Tamron 500mm F8 mirror lens. Easy to focus manually, but will need a tripod. short (122mm including the adapter), lightweight (655 gr.) and said to be one of the better mirror lenses.

 

The Tamron is indeed among the best!

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Nice shots ...Here's an example of my 500mm F4.5 Sigma adapted to A7RII cranked to 2X in-camera - on the night of the eclipse at a local church parking lot. Depth of field was too great at 220,000 miles, so I re-focused and blended em.

 

71a881f64f449ab65139c6f37a769ab8.jpg

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post-7614-0-91224700-1449310724_thumb.jpg

 

Hi ,

 

I use the tamron adaptall 2 sp 500mm mirror.

 

This was one of the best 500m mirror lenses of its time and is still readily available on the web.

 

Light and transportable.  You'll need a tripod. Focussing has to be precise.

 

The moon photo has obviously been heavily cropped (a7r) and excuse the over processing!!!

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I have a Russian Rubinar 500mm F8 mirror lens which I bought new, 18 years ago for 30€. Recently, bought also an M42 adapter to use it with my α7 camera and realised that gives a very good IQ for the paid price. Only my hands (which are not so steady) doesn't do justice to it.

post-15964-0-26585700-1524036102_thumb.jpg

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