Very long zoom lenses on m43

chrimsbroome

Right I have done some samples and they are not as bad as before. I know what I was doing wrong I was trying to take photos out of a window, which had a window net sheet. I was taking photos through this and was getting ghosting like images. However The images are not as sharp as they can be and I think it has something to do with the adapter that is not close enough to the lens mount glass.

Let me know anybody of some ideas to solve this.

chrimsbroome

@Gabel, I will get some photos done and post them, It prob will make it easier to understand whats it all about.

Gabel

Could you take some pictures for us to show?
But mainly, have you tried any other lenses with that adapter?
I should add that a 500 is not a 1000mm lens on a GH2, but rather more along a 900mm (the GH2 has more of an 1.8 crop than 2 crop).

chrimsbroome

@Gabel, Yes it is and it comes with an aperture adjustable ring. Its fully open that a made sure of, I don't know how to describe it, it just produces ghost like reproductions on objects. It's also not fully in focus at the maximum 500mm- which is 1000mm on the Panasonic GH2. I don't think its because the quality of the optics as most people say its great lens. What i can say is though I had similar problems when trying to adapt a Spotting scope to the Panasonic GH2.

This is what adapter a bought:

http://www.ebay.com.au/itm/290621097285?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Gabel

£20 for a mount is still pretty cheap though. But at what aperatures are you using it? Is is sharper stopped down? Do you have the possibility of trying other Nikon lenses to see if it works?

chrimsbroome

@Jeff, Hi I just got my sigma 150-500 and there must be something I am doing wrong as the Photos and videos seem blurry and not sharp. I have a Nikon to Micro 4/3 mount and it was £20 so not cheap. I can only think that the Micro 4/3 mount is too deep and is too far away from the glass ring of the lens.

chrimsbroome

@Jeff, thanks that be great while I am waiting :-)

Jeff

Hello
I've Sigma 50-500mm for filming concert
It's the Nikon mount with manual aperture ring
amazing
I will post soon samples

chrimsbroome

@DouglasHorn, year the ETC mode is just great for boosting the zoom and it does it in such a way that it Don't loose that much quality. The hack makes it much better than before also. I can't wait to get my sigma lens and give it a good work out with some far objects.

DouglasHorn

I have a Canon FD 200mm f/2.8 which is the equivalent of a 400mm 2.8 on the GH2. I love this as a narrative filmmaking lens for creating a shot of finding or losing someone in a crowd. It's a specific shot but one I love the look of, so I tracked down the lens on eBay. At 2.8 it intercuts very well with my other FD lenses. I have tried it in ETC mode where it's the equivalent of around 1000mm 2.8. Pretty incredible.

chrimsbroome

I just invested in a Sigma 150mm -500mm lens from a Hong Kong supplier. I will be dong some tests to see how much I can get out it. Its specs with a cropped micro 4/3 camera are something like 300mm - 1000mm standard zoom and 2600mm ETC mode, so it be fun and useful to get those type of zooms with the hack.

Supposedly with the added tel-converter that comes separate from the sigma lens (1.4x) will further boost the zoom. From some other user tests show that the 1.4x tel-converter doesn't compromise the sharpness as the 2x tel-convert does. This is a more cheaper method to dig-scopeing were you would spend £2000 on a spotting scope that you would end up separating the camera body from the lens and using the eye piece.

chrimsbroome

@Tristan, thanks for the info I will add it to my solutions list as I am planning on getting the Sigma lens ,but I need to make sure I get the right mount version (Canon EF or Nikon). Canon EF seems to be the best choice.

Yes it is a bit of a pricey mount but the lens is 300mm to 1000mm on the Panasonic GH2.

Tristan

just FYI, but Redrock Micro just came out with a EF to M4/3 adapter that allows you to adjust the iris. http://store.redrockmicro.com/livelensmft

hefty price for an adapter, but if someone with a collection of EF lenses buys a GH2, would totally be worth it. Or if you plan on getting a 5D MkIII when it comes out and so you're only buying canon glass for the time being.

chrimsbroome

@Vitaliy, o thanks - I guess you could say I am a bit stubborn when it comes to solveing a problem.

Vitaliy_Kiselev

@chrimsbroome

You are very strange guy.
People already told you that EF lens is worse choice.

Get either Nikon or Pentax one if you desperatly need this lense.
With Nikon G or Pentax DA adapters any lens could be adjusted.

ABout Kipon adapter with aperture blades - it is no replacement for normal aperture.

chrimsbroome

@LPowell, ok thanks I guess I have to stick with another Adaptor that has an adjustable aperture manual setting on it. Some guy on youtube showed a little mod that if you put a rubber piece in the aperature function on the lense you can set it too full open all the time. Then use the Canon EF adaptor with aperture control to control the amount of light that enters the GH2 senor.

http://www.ebay.co.uk/itm/150651336386?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

LPowell

@chrimsbroome

Two details you should know about:

1. The focus confirmation chip on the Canon FD -> MFT adapter will work only on Olympus cameras, not on Panasonic GH2.

2. The Sigma 150-500mm lens you linked on ebay is a Canon EF lens. It will not work with the Canon FD adapter at all.

chrimsbroome

@LPowell, ok so 100% chance it willl not autofocas lol. Look at the two links and you will see what lense I am talking about:

Canon to Micro 4/3 adaptor:

http://www.ebay.co.uk/itm/Canon-FD-Lens-Micro-4-3-Adapter-AF-Focus-Chip-/350451826496?_trksid=p5197.m7&_trkparms=algo%3DLVI%26itu%3DUCI%26otn%3D5%26po%3DLVI%26ps%3D63%26clkid%3D3347214825797737524

Sigma Lense:

http://www.ebay.co.uk/itm/140609946392?ssPageName=STRK:MESINDXX:IT&_trksid=p3984.m1436.l2649

LPowell

@chrimsbroome
I don't know where you get the idea there's an "80% chance". Unless you've got a Canon camera in addition to the GH2, I don't see any advantage in buying a Canon EF lens. There is currently no adapter that will make any type of Canon (or Nikon) lens auto-focus on the GH2.

chrimsbroome

@LPowell, thanks for the info- Ok so what your saying is there is a 80% chance the Chipped Auto focus Canon FD mount for the Sigma lense 150mm- 500mm lense will not auto focas. I dont intend to use Canon lenses its just that the Chipped auto focus adaptor is specs on Canon Mounts so thats why I aim to get the sigma lense that is mount for Canon lenses.

It seems as if I am going to end up with it only being manual, but if thats what I only going to get then I will get a Adaptor that has an adjustable aperture.

LPowell

I have the original non-DG version (with an aperture ring) of the Sigma 70-200mm f2.8 HSM zoom in a chipped Nikon mount. It auto-focuses with my Nikon D5100 and manually focuses on my GH1 and GH2, using a standard F-mount adapter. In general, I recommend staying away from Nikon and Canon auto-focus lenses that lack an aperture ring. The adapters that provide some external way to control lens aperture are too funky for my purposes.

chrimsbroome

@Vitaliy :-), ok I will try and explain..........You can get Sigma 150-500 lenses on ebay brand new and they come in different versions, for nikon F, for Canon, For Pentax Mounts. I was asking is the Mounts on them Made to each brand e.g. Canon, so that Sigma lense is only supposed to fit on Canon lense. Or do you think Sigma supply you with a adaptor mount.

I have a Panasonic 100-300mm lense which is great at 1560mm max. I am thinking of getting the sigma 150-500mm (300-1000mm 35mm equivalant) to get longer zoom. Now In order to get the camera and lense to work together I have to get some sort of adaptor. I have seen an adaptor on ebay that is auto focus confimed chipped so it supposely allows auto focus to work but I dont know till I have bought them.

Vitaliy_Kiselev

Pentax one will work, and your question sounds very strange ("pentax mount come with the lense or when the lense is made is it built into the lense so its pentax only fit").

Are you sure that you need it?
How about 100-300mm Panasonic one?
because I have no idea how you'll be shooting without OIS on such focal length.

chrimsbroome

@vitaliy, so a Pentax version of the Sigma 150-500mm lense will work hey?

Does the pentax mount come with the lense or when the lense is made is it built into the lense so its pentax only fit?

Vitaliy_Kiselev

>How do we solve this???

Buy Pentax version?

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