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The lens contentment stage

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nandbytes View Drop Down
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 11:58
Originally posted by addy landzaat addy landzaat wrote:

Just some food for thought:
Originally posted by nandbytes nandbytes wrote:

Sure but how many of these would one actually want to buy for use on a A99ii. Personally just the 70-400mm. I wouldn't buy some of these even for shooting on 24mp.
I understand your position and probably agree. However, I think this is not true for everybody. What about a landscape photographer or a wedding photographer who once in a while goes out for some light birding or sports - this photographer doesn't need the best resolution out of the A99m2. Most of these pictures will be shared at small sizes, so the fact that the lens cannot resolve the full 42mp of the A99m2 is no problem.

But then, some of these lenses have problems beyond resolution.....


tbh I don't see many people buying an A99II or even an A77II with its sensor and AF system to put minolta 100-400mm on it (even landscape photographers many of whom will use telelenses which are very useful for landscape). I am sure there are exceptions but I am speaking of the norm.

Originally posted by addy landzaat addy landzaat wrote:


Canon EOS 1Dx3 goes to 20fps and the Canon EOS R3 offers 30fps. You might not need it, but like megapixels it is nice to have and a problem for a camera company who cannot offer it. But then, the 2011 Canon EOS 1Dx only offered 14fps and the 2012 Nikon D4 stopped at 11fps....


1DXiii offers 16FPS when using OVF, its 20FPS only in live view. good luck handholding that beast in liveview with a large lens

I have the A1 which also offers 30fps. Granted it's the first camera I have owned that goes that far. 15-20fps seems to be more than enough in my experience even for the most active of birds.
I really haven't come across a situation where I thought 30fps was actually helpful (doesn't mean it doesn't exist but I can't imagine any at the moment)
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addy landzaat View Drop Down
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Post Options Post Options   Quote addy landzaat Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 12:20
Originally posted by nandbytes nandbytes wrote:

1DXiii offers 16FPS when using OVF, its 20FPS only in live view. good luck handholding that beast in liveview with a large lens
I have good news for you: you do not need to handhold it - use a monopod or tripod!
Why not follow me on Instagram? @Addy_101
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Post Options Post Options   Quote Jonas A-R Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 13:48
Originally posted by addy landzaat addy landzaat wrote:

I understand your position and probably agree. However, I think this is not true for everybody. What about a landscape photographer or a wedding photographer who once in a while goes out for some light birding or sports - this photographer doesn't need the best resolution out of the A99m2. Most of these pictures will be shared at small sizes, so the fact that the lens cannot resolve the full 42mp of the A99m2 is no problem.


I don't wish to derail this nice discussion, so I shall say this only once : Lenses do not have to resolve any sensor. As a matter of fact, it is hugely beneficial if the lens is oversampled because it prevents horrific aliasing.
That said, another fact is that even the most mediocre lens is grossly under sampled by the huge pixels in the a99ii and other contemporary sensors. At least in the centre.
Ideally we should sample the analogue signal appropriately and then scale the images as required by the desired display taking measures to prevent aliasing in the resampling method of choice. Noise reduction etc works much better at high resolution applied before resampling
We can continue the discussion when we get to around 700MP on a FF chip    
a9 a6300
21/2.8 Loxia 35/1.4Z 50/1.4Z 85/1.4GM 90/2.8G Laowa 100mm F2.8 Ultra Macro 100/2.8GM 135/1.8GM
12-24/4G 24-105/4G 100-400/4-5.6GM 2x TC
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 15:07
Originally posted by addy landzaat addy landzaat wrote:

Originally posted by nandbytes nandbytes wrote:

1DXiii offers 16FPS when using OVF, its 20FPS only in live view. good luck handholding that beast in liveview with a large lens
I have good news for you: you do not need to handhold it - use a monopod or tripod!


I don't *NEED* to use a large lens at all. Can just use a pancake lens and get very close to the wildlife.

I prefer buying a camera that suits my way of shooting rather than changing my way of shooting to suit the camera
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Post Options Post Options   Quote nandbytes Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 15:09
Originally posted by Jonas A-R Jonas A-R wrote:


I don't wish to derail this nice discussion, so I shall say this only once : Lenses do not have to resolve any sensor. As a matter of fact, it is hugely beneficial if the lens is oversampled because it prevents horrific aliasing.
That said, another fact is that even the most mediocre lens is grossly under sampled by the huge pixels in the a99ii and other contemporary sensors. At least in the centre.
Ideally we should sample the analogue signal appropriately and then scale the images as required by the desired display taking measures to prevent aliasing in the resampling method of choice. Noise reduction etc works much better at high resolution applied before resampling
We can continue the discussion when we get to around 700MP on a FF chip    


not entirely sure what you mean, I can definitely see the difference in sharpness between older telezooms and the newer ones. So can many other people
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Jonas A-R View Drop Down
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Post Options Post Options   Quote Jonas A-R Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 16:36
Originally posted by nandbytes nandbytes wrote:

Originally posted by Jonas A-R Jonas A-R wrote:


I don't wish to derail this nice discussion, so I shall say this only once : Lenses do not have to resolve any sensor. As a matter of fact, it is hugely beneficial if the lens is oversampled because it prevents horrific aliasing.
That said, another fact is that even the most mediocre lens is grossly under sampled by the huge pixels in the a99ii and other contemporary sensors. At least in the centre.
Ideally we should sample the analogue signal appropriately and then scale the images as required by the desired display taking measures to prevent aliasing in the resampling method of choice. Noise reduction etc works much better at high resolution applied before resampling
We can continue the discussion when we get to around 700MP on a FF chip    


not entirely sure what you mean, I can definitely see the difference in sharpness between older telezooms and the newer ones. So can many other people

Yup, that was not my point.
The point was that any lens you can get, old or new, can produce aliasing at the current pixel sizes. That means they are undersampled which is a bad thing (and certainly do “resolve the sensor”) Aliasing cannot be undone and we need much smaller pixels (or much worse lenses) to prevent it.
a9 a6300
21/2.8 Loxia 35/1.4Z 50/1.4Z 85/1.4GM 90/2.8G Laowa 100mm F2.8 Ultra Macro 100/2.8GM 135/1.8GM
12-24/4G 24-105/4G 100-400/4-5.6GM 2x TC
 



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Wētāpunga View Drop Down
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Post Options Post Options   Quote Wētāpunga Quote  Post ReplyReply Direct Link To This Post Posted: 06 October 2021 at 22:40
Originally posted by Hezu Hezu wrote:

... All those Sigmas were released in Sony α era: 135-400 2006, 120-400 2008 and 120-400 OS 2010. Of course, it is possible that these were not that commonly available everywhere (especially in A mount).


I don't think I saw them in NZ (but it is a very small market).I saw some 50-500s and the excellent 100-300/4, which was dropped from the Sigma lineup for reasons I never understood.

The Sony 70-400 is the only Zoom in there I was tempted by.
Probably not helped by the number of screw-drive Sigma lenses that had their gears stripped by some of the earlier Sony DSLRS...

I was reasonably happy with the E Mount Sigma 100-400 and if budget had allowed, would probably have liked the Sony 100-400 G as well.
a7riii- Voigtländer 15/4.5, 110/2.5 M; Zeiss Loxia- 21/2.8, 35/2, 50/2 & 85/2.4, Zeiss Batis- 85/1.8 & 135/2.8; Sony 24-105/4 G; Sigma 70/2.8 M; Tamron 150-500 f5-6.7; Sony SAL 135/2.8 STF
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Post Options Post Options   Quote Jonas A-R Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2021 at 14:54
Just sold my 12-24G, next up is my 50, 35 and 24-105 and the Loxia
The aim is to raise funding for improved lens contentment
a9 a6300
21/2.8 Loxia 35/1.4Z 50/1.4Z 85/1.4GM 90/2.8G Laowa 100mm F2.8 Ultra Macro 100/2.8GM 135/1.8GM
12-24/4G 24-105/4G 100-400/4-5.6GM 2x TC
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Barrin View Drop Down
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Post Options Post Options   Quote Barrin Quote  Post ReplyReply Direct Link To This Post Posted: 08 October 2021 at 22:05
I'm finding a good way to try new stuff containing thenumber and the cost is trading lenses. I've just traded a Pen F 38/1.8 for a MD Rokkor 24/28, so curious to try it even on the speedbooster. If I don't like it I'd surely morea easily sell it rather than the 38.

Sony A6000|Zony 24/1.8|Sigma 60/2.8

3xi|M35-70/4|M100-200/4.5

Olympus Trip 35
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