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-   -   New Olympus Patent: 400mm f4.0 MFT Lens (http://e-group.uk.net/forum/showthread.php?t=48519)

Loup Garou 20th August 2018 12:29 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Ross the fiddler (Post 455273)
The 150-400 F4-5.6 won't be light with that focal length & aperture, but not as large & heavy if it was a constant F4 though & is most likely a Pro quality lens with OIS & Sync IS possibility. Your 14-150 F4-5.6 lens is a very compact lens.

The PanaLeica 100-400 F4.0-6.3 is nearly 1kg with a 72mm filter. I would expect the Olympus to be a bit heavier & maybe with a larger filter perhaps too (not sure on the physics on that though).

I can live with that. Of course I expect the 150-400 to be a lot larger and heavier than the 14-150 and I was infect thinking in terms of the PanLeica 100-400 dimensions. Anything up to 1.5Kg is OK with me and while it will not fit into the space presently occupied by the Panasonic 100-300 in my camera bag, I have several smaller bags to use for a large lens.

But if you think about the dimensions for an equivalent lens for Canon or Nikon, then you know what I mean by portability. I think the MFT system has given non-professional enthusiasts like me an opportunity to include good long lenses in the hand luggage while travelling.

Tordan58 23rd August 2018 10:38 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
That lens would be fitted with an 89mm front lens. It would still be portable, although heavier than the Panasonic 100-400. How much is depending on the optical design and selection of material.

It would however cannibalize on the 300/F4 (+MC14) having more or less same the same speed at 300mm. At 400mm it would be almost 2/3 stops faster however most telezooms tend to soften at the longest zoom range, so that advantage may very well be eaten up as you need to stop down for sharp results.

The success would be gated by pricing considering the competition from the well regarded and popular Panasonic 100-400 lens. Tough to beat.

A zoom that would make more sense to me looking at the competitive landscape is something like a 150-500 F/5.6 or maybe 150mm-600mm F/6.3... F/6.7

Or if I may wish, a 500mm F/5.6 prime.

Loup Garou 24th August 2018 05:14 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Tordan58 (Post 455869)
That lens would be fitted with an 89mm front lens. It would still be portable, although heavier than the Panasonic 100-400. How much is depending on the optical design and selection of material.

It would however cannibalize on the 300/F4 (+MC14) having more or less same the same speed at 300mm.

I am not sure about that. These long zooms lose max aperture values fairly quickly in the first part of zooming and so a 150-400mm f4-5.6 might be closer to f5 at 300mm.

Theoretically if Olympus made the 150-400mm as a f4.5 to 5.6 or even f4.5 to 6.3, will its portability increase? f6.3 at 400mm is not bad at all.

Thomas Westhead 31st October 2018 03:34 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Hello all,


If this new Olympus zoom comes to the market is it likely to be internally focusing like the Pro 40-150 f2.8 ? I personally would feel this is Very important.


Shooting wildlife in wet or dusty conditions I have never been happy with lens barrels that zoom in and out.

Loup Garou 31st October 2018 07:12 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Thomas Westhead (Post 461524)
If this new Olympus zoom comes to the market is it likely to be internally focusing like the Pro 40-150 f2.8 ? I personally would feel this is Very important.


I don't have a great deal of knowledge of optics but it seems to me even an MFT lens 150-400mm f2.8 PRO would be impractically huge. Would a facility for internal zooming make it even larger?

MJ224 31st October 2018 10:14 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Bit late on this thread, but my preference is for a zoom lens, the flexibility is needed for what I want...…….…..*chr

Thomas Westhead 31st October 2018 11:12 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Hi All,


I was thinking something from Olympus that would rival the Panasonic 100-400 but maybe a little faster and with internal focusing.


It would be a great pull for the Canon users too who have the 100-400 f4.5-5.6 especially aviation shooters/sports enthusiasts/Birders.


If they built something on the lines of the 40-150 f2.8 but 100-400 f4.5-5.6 I would be sold!

stevewestern 1st November 2018 08:10 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Thomas Westhead (Post 461552)
Hi All,


I was thinking something from Olympus that would rival the Panasonic 100-400 but maybe a little faster and with internal focusing.


It would be a great pull for the Canon users too who have the 100-400 f4.5-5.6 especially aviation shooters/sports enthusiasts/Birders.


If they built something on the lines of the 40-150 f2.8 but 100-400 f4.5-5.6 I would be sold!

That would make me stick with Olympus, along with the new body if it brings better low light and focus speed, simpler menus would be nice too..!
I've now sold my Nikon gear, but have a bag full of fuji that seems to get a lot more use than my Em1 mk2.

Thomas Westhead 1st November 2018 09:04 PM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Hi Guys,


I sent a message to Olympus via their website about the possibility of future development of a Pro 100-400mm lens in a similar guise to the 40-150 f2.8 Pro lens say f4 f4.5 f5.6.


A lens that would rival the Panasonic 100-400 and the Canon 100-400 the later which I used a lot for aviation I pointed out the significance of the internal zoom mechanism over the other brands of which have the extending lens barrel I say this because having used the Olympus 40-150 Pro in the field it had great weather sealing and inspired confidence to use it in more extreme weather i.e. when it pours down.


Any way worth highlighting this type of lens though I guess when the Panasonic came to the market they must have looked into the possibility of this focal length so I may be a bit late in mentioning it.


They replied and said they would forward this to the development department.

GyRob 2nd November 2018 09:28 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
I would love a 400 f4 it would be great for aircraft and wild life if any mft can do it Olympus can .
Rob.

Bassman51 3rd November 2018 12:57 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
A 100-400/4.0 lens would need a 100mm diaphragm pupil - that's a seriously large lens. Bumping the max aperture to 5.6 drops it to 71mm, which might use a 77mm filter.

Remember, the 40-150/2.8 plus the 1.4TC yields a 56-210/4.0 lens which weighs in at over 2 lbs. The Panny 100-400/4.0-6.3 is just under 2 lbs.

Loup Garou 3rd November 2018 08:44 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Bassman51 (Post 461756)
A 100-400/4.0 lens would need a 100mm diaphragm pupil - that's a seriously large lens.

Will that not take away one of the main selling points of the MFT system - portability?

Bikie John 3rd November 2018 09:54 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Of course not. If you want f/4 at 400mm it is going to be big, heavy and VERY expensive whatever your sensor size. But you don't have to use that lens for everything, and if you want portable there are plenty of much smaller lenses that will fit the bill. They just won't be as long and fast.

John

stevewestern 3rd November 2018 11:01 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
Quote:

Originally Posted by Bassman51 (Post 461756)
Remember, the 40-150/2.8 plus the 1.4TC yields a 56-210/4.0 lens which weighs in at over 2 lbs. The Panny 100-400/4.0-6.3 is just under 2 lbs.

I had no idea the Panasonic was so light - the only time I've ever seen one it looked like it was a bit of a lump (weight-wise..)

MJ224 3rd November 2018 11:19 AM

Re: New Olympus Patent: 400mm f4.0 MFT Lens
 
The 40-150mm PRO is a lump..., certainly the Pan y 100-400mm looks quite sleek alongside it..*chr


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