Erro ao retornar dados da camera

Pessoal tudo bem?

Estou com problemas no momento que o aplicativo tenta salvar a foto é retornado o seguinte erro

FATAL EXCEPTION: main
        Process: br.com.alura.agenda, PID: 9938
        java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=567, result=-1, data=null} to activity {br.com.alura.agenda/br.com.alura.agenda.FormularioActivity}: java.lang.ClassCastException: android.support.v7.widget.AppCompatButton cannot be cast to android.widget.ImageView
        at android.app.ActivityThread.deliverResults(ActivityThread.java:3699)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)
        at android.app.ActivityThread.-wrap16(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:148)
        at android.app.ActivityThread.main(ActivityThread.java:5417)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
        Caused by: java.lang.ClassCastException: android.support.v7.widget.AppCompatButton cannot be cast to android.widget.ImageView
        at br.com.alura.agenda.FormularioActivity.onActivityResult(FormularioActivity.java:83)
        at android.app.Activity.dispatchActivityResult(Activity.java:6428)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:3695)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) 
        at android.app.ActivityThread.-wrap16(ActivityThread.java) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) 
        at android.os.Handler.dispatchMessage(Handler.java:102) 
        at android.os.Looper.loop(Looper.java:148) 
        at android.app.ActivityThread.main(ActivityThread.java:5417) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
        11-10 02:47:26.408 9938-9938/br.com.alura.agenda I/Process: Sending signal. PID: 9938 SIG: 9
        11-10 02:47:26.593 11109-11109/br.com.alura.agenda W/System: ClassLoader referenced unknown path: /data/app/br.com.alura.agenda-2/lib/x86_64
        11-10 02:47:27.943 11109-11109/br.com.alura.agenda W/System: ClassLoader referenced unknown path: /data/app/br.com.alura.agenda-2/lib/x86_64

Segue o codigo para acessar a camera:

        /**
         * Comando para utilizar a camera
         * é passado um setOnClickListener - Classe anonima, e passar a intencao que queremos
         * e chamar a tela startActivity
         */
        Button botaoFoto = (Button) findViewById(formulario_novaFoto);
        botaoFoto.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intentCamera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                caminhoFoto = getExternalFilesDir(null) + "/" + System.currentTimeMillis() + ".jpg";
                File arquivoFoto = new File(caminhoFoto);
                intentCamera.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(arquivoFoto));
                startActivityForResult(intentCamera, CODIGO_CAMERA);
            }

        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(resultCode == CODIGO_CAMERA){
            //Abre a foto que tiramos
            if(requestCode == CODIGO_CAMERA){
                ImageView foto = (ImageView) findViewById(formulario_novaFoto);
                Bitmap bitmap = BitmapFactory.decodeFile(caminhoFoto);
                Bitmap bitmapReduzido = bitmap.createScaledBitmap(bitmap, 300, 300, true);
                foto.setImageBitmap(bitmapReduzido);

                foto.setScaleType(ImageView.ScaleType.FIT_XY);
            }
        }
    }

Estou usando o emulador do marshmallow, este erro ocorre mesmo usando dispositivo via USB.